{"title":"Two-Piece Rotors","description":"\u003cp\u003eTwo-piece floating rotors — a G3500 high-carbon iron ring on a CNC-machined 6061-T6 hat, matched pairs built to order in 10–12 days. Fixed or full-floating, 309.9 mm to 400 mm.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/guides\/what-is-a-two-piece-rotor\"\u003eWhat is a two-piece rotor? →\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"bmw-m2-f87-front-rotor-pair-400-36","title":"BMW M2 F87 Front Two-Piece Rotor Pair — 400×36mm","description":"\u003cp\u003e\u003cstrong\u003eF87 M2 front rotors — 400 × 36 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eReplacing the factory front disc with a two-piece rotor changes where the heat goes. On an F87 M2 running the 400 × 36 mm disc that matters: it is a heavy disc on a short-wheelbase car, and the front axle does most of the work.\u003c\/p\u003e\n\u003cp\u003eA single casting expands as one piece. Under repeated hard stops the friction face heats faster than the hat, the disc cones slightly, and the pads never sit flat again — that is the shudder at 60 mph, and the bluing across the face. A two-piece disc splits the job: the ring takes the heat, the hat holds the hub. The ring is G3500 high-carbon cast iron; the hat is CNC-machined 6061-T6 aluminium, bolted through stainless floating hardware.\u003c\/p\u003e\n\u003cp\u003eIdentification is by size, not by model year: 400 mm across the face, 36 mm at the edge, 64 mm from the friction face to the hat mounting face. If you measure 380 mm you are looking at the other M2 front disc, and it takes a different pad and caliper bracket.\u003c\/p\u003e\n\u003cp\u003eOE reference 34118072017 \/ 34118072018 · Minimum thickness 34.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eFits F87 M2 front axles with the 400 × 36 mm disc — OE 34118072017 and 34118072018. Sending your VIN and a photo of the disc face is the fastest way to confirm before you order.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eFixed is quieter and is what most road cars want. Full-floating lets the ring move more freely under sustained heat and is what we recommend for regular track use; the trade-off is a light rattle at low speed, which is normal and not a fault.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eYou do not always need new pads — but if yours are below 30% on a fresh disc, fit new ones at the same time. Old pad deposits are the most common reason a brand-new rotor feels warped. Bed both in with 6–8 moderate stops from 80 km\/h, letting them cool between.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267393585377,"sku":"ZR-T-3198-FL","price":749.0,"currency_code":"USD","in_stock":true},{"title":"Fixed","offer_id":51267393552609,"sku":"ZR-T-3198-FX","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"bmw-m2-f87-rear-rotor-pair-380-28","title":"BMW M2 F87 Rear Two-Piece Rotor Pair — 380×28mm","description":"\u003cp\u003e\u003cstrong\u003eF87 M2 rear rotors — 380 × 28 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe rear of an M2 does less braking than the front, but it has a second job the front does not: the parking brake lives inside the rear disc. On the F87 that drum sits inside the hat, so the rear disc wears two ways at once — friction face from braking, drum from the shoes.\u003c\/p\u003e\n\u003cp\u003eOur rear pair is built like the front: a G3500 high-carbon ring on a 6061-T6 aluminium hat, bolted through stainless floating hardware. The drum surface is machined as part of the ring, so parking brake bed-in is the same as factory. 64.9 mm total height on a 75 mm centre bore, 5 bolt holes.\u003c\/p\u003e\n\u003cp\u003eMeasure the drum, not just the ring: this disc has two working surfaces, 380 mm at the friction ring and the drum bore inside the hat. A 370 mm rear disc from an F80 will bolt up and then foul the parking brake shoes.\u003c\/p\u003e\n\u003cp\u003eOE reference 34118072019 \/ 34118072020 · Minimum thickness 26.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eF87 M2 rear, 380 × 28 mm with drum parking brake — OE 34118072019 and 34118072020. If you have the 370 × 24 mm rear disc, order that pair instead.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eThe rear sees far fewer heat cycles than the front, so Fixed is the sensible default — quieter and cheaper. Full-floating is available if you track the car and run aggressive rear pads.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eReplace the parking brake shoes at the same time if the drum face is scored; new drum against worn shoes will drag. Bed the service brakes with 6–8 stops from 80 km\/h, then set and release the parking brake a few times from walking speed.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267393650913,"sku":"ZR-T-3199-FL","price":729.0,"currency_code":"USD","in_stock":true},{"title":"Fixed","offer_id":51267393618145,"sku":"ZR-T-3199-FX","price":689.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"bmw-m2-f87-m3-f80-m4-f82-front-rotor-pair-380-30","title":"BMW M2 F87 \/ M3 F80 \/ M4 F82 Front Two-Piece Rotor Pair — 380×30mm","description":"\u003cp\u003e\u003cstrong\u003eF87 M2 \/ F80 M3 \/ F82 M4 front rotors — 380 × 30 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOne disc, three cars. The 380 × 30 mm front rotor is shared across the F87 M2, F80 M3 and F82 M4 — which is exactly why buying the wrong one is easy. The M2 also runs a 400 × 36 mm front disc on some builds, and the G-series cars moved to 380 × 36 mm: same diameter, different thickness.\u003c\/p\u003e\n\u003cp\u003eG3500 high-carbon ring, 6061-T6 aluminium hat, stainless floating hardware. 62.4 mm total height, 79 mm centre bore, 5 bolt holes — the F8x hub pattern.\u003c\/p\u003e\n\u003cp\u003eThree numbers identify it: 380 mm diameter, 30 mm thickness, 62.4 mm height. The M2's 400 mm disc is obvious; the G80's 380 × 36 mm is the one that catches people, because the diameter is right and the thickness is not.\u003c\/p\u003e\n\u003cp\u003eOE reference 34112284809 \/ 34112284810 · Minimum thickness 28.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eF87 M2, F80 M3 and F82 M4 front, 380 × 30 mm — OE 34112284809 and 34112284810. Not the 400 × 36 mm M2 disc and not the 380 × 36 mm G-series disc.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eWith three cars on one disc we see both — Fixed for road cars, Full-floating for cars that see track time. The low-speed rattle that comes with Full-floating is the ring moving, not a fault.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eOn a shared-fitment disc, pad choice matters more than usual — a pad that runs hot on an M4 will do the same on an M3. Bed in with 6–8 moderate stops from 80 km\/h.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267393913057,"sku":"ZR-T-3661-FL","price":639.0,"currency_code":"USD","in_stock":true},{"title":"Fixed","offer_id":51267393880289,"sku":"ZR-T-3661-FX","price":589.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"bmw-m2-f87-m3-f80-m4-f82-rear-rotor-pair-370-24","title":"BMW M2 F87 \/ M3 F80 \/ M4 F82 Rear Two-Piece Rotor Pair — 370×24mm","description":"\u003cp\u003e\u003cstrong\u003eF87 M2 \/ F80 M3 \/ F82 M4 rear rotors — 370 × 24 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe rear disc on the F8x cars carries the parking brake drum inside the hat, so it wears two ways at once: the friction face takes braking heat, the drum takes the shoes. Once the drum face scores, no amount of new pads fixes the noise — the disc has to come off.\u003c\/p\u003e\n\u003cp\u003eG3500 ring with the drum machined into it, 6061-T6 hat, stainless floating hardware, 64.8 mm total height and 75 mm centre bore. Shared across F87 M2, F80 M3 and F82 M4.\u003c\/p\u003e\n\u003cp\u003eRead the height first: 64.8 mm from friction face to mounting face, at 370 mm diameter and 24 mm thick, with the parking brake surface inside. The 380 × 28 mm disc from an M2 with the larger brake package is taller and will not seat.\u003c\/p\u003e\n\u003cp\u003eOE reference 34212284811 \/ 34212284812 · Minimum thickness 22.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eF87, F80 and F82 rear, 370 × 24 mm with drum — OE 34212284811 and 34212284812. Not the 380 × 28 mm rear disc.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eRear axle, road car: Fixed. If you run a track pad and see rear temperatures, Full-floating keeps the ring flat when the rear gets hot from traction control intervention.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eTraction control works the rear brakes harder than most drivers realise. If your rear pads are wearing faster than the fronts, check the disc for hot spots before fitting new pads.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267393978593,"sku":"ZR-T-3222-FL","price":689.0,"currency_code":"USD","in_stock":true},{"title":"Fixed","offer_id":51267393945825,"sku":"ZR-T-3222-FX","price":649.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"bmw-m3-g80-m4-g82-front-rotor-pair-380-36","title":"BMW M2 G87 \/ M3 G80 \/ M4 G82 Front Two-Piece Rotor Pair — 380×36mm","description":"\u003cp\u003e\u003cstrong\u003eG80 M3 \/ G82 M4 front rotors — 380 × 36 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSame 380 mm diameter as the F80, 6 mm thicker, and a different hub. The G-series front disc is 380 × 36 mm on a 67 mm centre bore; the F80's 380 × 30 mm disc shares the diameter and nothing else. That is the single most common wrong part we get asked about.\u003c\/p\u003e\n\u003cp\u003eG3500 high-carbon ring, 63 mm total height, 5 bolt holes on the 67 mm bore, 6061-T6 aluminium hat with stainless floating hardware. A thicker disc means more heat capacity at the same diameter — useful on a car heavier than the F80 it replaced.\u003c\/p\u003e\n\u003cp\u003eMeasure thickness before anything else. Both the F80 and the G80 run a 380 mm front disc; only the G80 is 36 mm thick against 30 mm, on a 63 mm hat against 62.4 mm. A caliper set up for a 30 mm disc will not take a 36 mm one.\u003c\/p\u003e\n\u003cp\u003eOE reference 34108093709 \/ 34108093710 · Minimum thickness 34.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eG80 M3 and G82 M4 front, 380 × 36 mm — OE 34108093709 and 34108093710. Not the 380 × 30 mm F8x disc.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eThe G80 is heavy enough that we default to Full-floating for cars that see track days. Fixed remains the quieter choice for a daily.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eA thicker disc runs cooler at the face, which changes bed-in — take two or three extra stops beyond the usual six to eight to get a full transfer layer.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267394044129,"sku":"ZR-T-1077-FL","price":639.0,"currency_code":"USD","in_stock":true},{"title":"Fixed","offer_id":51267394011361,"sku":"ZR-T-1077-FX","price":589.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"bmw-m3-g80-m4-g82-rear-rotor-pair-370-24","title":"BMW M2 G87 \/ M3 G80 \/ M4 G82 Rear Two-Piece Rotor Pair — 370×24mm","description":"\u003cp\u003e\u003cstrong\u003eG80 M3 \/ G82 M4 rear rotors — 370 × 24 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe G-series rear disc is 370 × 24 mm like the F80's, but the hat is 38 mm tall instead of 64.8 mm — the parking brake drum sits somewhere else entirely. Same diameter, different offset: this is not a part you can judge by the number on the box.\u003c\/p\u003e\n\u003cp\u003eG3500 ring with integrated drum, 6061-T6 hat, 67 mm centre bore, 5 bolt holes, stainless floating hardware. 24 mm thick against a 22.0 mm minimum. The drum is machined into the ring, so the parking brake surface arrives with the disc rather than being carried over from the old one.\u003c\/p\u003e\n\u003cp\u003eThe tell is the hat: 38 mm on the G80 against 64.8 mm on the F80, at an identical 370 mm diameter. Put a straight edge across the hat and measure to the friction face — the 27 mm difference is impossible to miss once you look.\u003c\/p\u003e\n\u003cp\u003eOE reference 34208093729 \/ 34208093730 · Minimum thickness 22.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eG80 and G82 rear, 370 × 24 mm, 38 mm hat — OE 34208093729 and 34208093730. Not the F80 rear disc.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eRear, road use: Fixed. Full-floating if you track the car and want the ring to stay flat through repeated rear heat cycles.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eWith the drum inside the hat, check the drum face whenever you change rear pads — scoring there causes a grinding noise that sounds like a wheel bearing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267394306273,"sku":"ZR-T-1078-FL","price":599.0,"currency_code":"USD","in_stock":true},{"title":"Fixed","offer_id":51267394273505,"sku":"ZR-T-1078-FX","price":549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"bmw-m5-f90-m8-front-rotor-pair-395-36","title":"BMW M5 F90 \/ M8 Front Two-Piece Rotor Pair — 395×36mm","description":"\u003cp\u003e\u003cstrong\u003eF90 M5 \/ M8 front rotors — 395 × 36 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e395 mm is the largest front disc in the range, and it is on the heaviest car. An F90 M5 or an M8 arrives at a corner with more mass to shed than anything else we make rotors for, and all of it goes through the front axle. Heat management here is not a track-day nicety — it is what stops the disc going off on a fast road.\u003c\/p\u003e\n\u003cp\u003eG3500 high-carbon ring at 395 × 36 mm, 34.0 mm minimum, 63 mm total height on a 67 mm bore, 5 bolt holes. 6061-T6 aluminium hat, stainless floating hardware.\u003c\/p\u003e\n\u003cp\u003eOne number settles it: 395 mm across the face. Nothing else in the BMW range uses this diameter, so if you measure 395 you have the right part; if you measure 380 you are looking at a G80 or G82 front disc, 15 mm smaller and the same 36 mm thick.\u003c\/p\u003e\n\u003cp\u003eOE reference 34117991101 \/ 34117991102 · Minimum thickness 34.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eF90 M5 and M8 front, 395 × 36 mm — OE 34117991101 and 34117991102. Not the 380 × 36 mm G80\/G82 front disc.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eOn a car this heavy we recommend Full-floating by default: the ring needs to grow without loading the hat bolts. Fixed is available and is fine for pure road use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBig discs need a pad that can take heat without crumbling at the edge. Bed in gently and let the disc cool fully before the first hard stop.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267394371809,"sku":"ZR-T-3211-FL","price":679.0,"currency_code":"USD","in_stock":true},{"title":"Fixed","offer_id":51267394339041,"sku":"ZR-T-3211-FX","price":629.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"bmw-m5-f90-m8-rear-rotor-pair-380-28","title":"BMW M5 F90 \/ M8 Rear Two-Piece Rotor Pair — 380×28mm","description":"\u003cp\u003e\u003cstrong\u003eF90 M5 \/ M8 rear rotors — 380 × 28 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe rear disc on the M5 and M8 is 380 × 28 mm with a 46 mm hat — taller than the G80's 38 mm, shorter than the F80's 64.8 mm. Three cars, three rear discs in the 370–380 mm range, three different offsets. This is the one that fits the F90 and the M8 only.\u003c\/p\u003e\n\u003cp\u003eG3500 high-carbon ring, 6061-T6 aluminium hat, stainless floating hardware, 67 mm centre bore, 5 bolt holes, 28 mm thick against a 26.0 mm minimum. The 46 mm hat is what makes this a different casting from the F87 rear disc, despite the shared 380 mm diameter.\u003c\/p\u003e\n\u003cp\u003eStart with the hat height: 46 mm. The F87 rear disc is also 380 mm but sits at 64.9 mm, and the G80 rear is 370 mm at 38 mm. Diameter alone will not separate these three — the offset will.\u003c\/p\u003e\n\u003cp\u003eOE reference 34217991103 \/ 34217991104 · Minimum thickness 26.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eF90 M5 and M8 rear, 380 × 28 mm, 46 mm hat — OE 34217991103 and 34217991104. Not the 370 × 24 mm G80\/G82 rear disc.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eRoad car: Fixed. The rear rarely needs floating hardware on a car with this much front bias unless it is used on track.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eRear pads on these cars last a long time; the disc usually outlives two sets. Measure at 26.0 mm before deciding to replace.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267394666721,"sku":"ZR-T-3670-FL","price":639.0,"currency_code":"USD","in_stock":true},{"title":"Fixed","offer_id":51267394633953,"sku":"ZR-T-3670-FX","price":589.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"nissan-gt-r-r35-front-rotor-pair-390-32","title":"Nissan GT-R R35 Front Two-Piece Rotor Pair — 390×32.7mm","description":"\u003cp\u003e\u003cstrong\u003eR35 GT-R front rotors — 390 × 32.7 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a GT-R the front disc is not a wear item you think about until it is a problem. The 390 × 32.7 mm ring on a later R35 has to absorb the braking load of a heavy car that arrives at corners far faster than its weight suggests — and it has to do it lap after lap without going off-round.\u003c\/p\u003e\n\u003cp\u003eThe GT-R has run a two-piece front disc since launch, so this is a like-for-like replacement, not a conversion. What changes is the ring: G3500 high-carbon cast iron at 390 × 32.7 mm, 30.7 mm minimum, 48.7 mm total height, 68 mm centre bore, 5 bolt holes. The hat is 6061-T6 aluminium, joined through stainless floating hardware.\u003c\/p\u003e\n\u003cp\u003eIdentification is a single measurement: 390 mm across the face. The earlier 380 mm disc is visibly 10 mm smaller and runs a different caliper spacing, so the two never share a part number — and never share a pad.\u003c\/p\u003e\n\u003cp\u003eOE reference 40206KB50A \/ 40206KJ10A · Minimum thickness 30.7 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eR35 front, 390 mm — OE 40206KB50A and 40206KJ10A. Earlier cars use the 380 × 34 mm pair, OE 40206JF20A.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eFixed suits a road GT-R; Full-floating is what most track cars run. The rattle at low speed is the ring moving, not a fault.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBecause the hat stays, the second set of rings costs a fraction of a full disc. Bed new rings in with 6–8 stops from 80 km\/h and re-check torque on the hat bolts after the first heat cycle.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267394732257,"sku":"ZR-T-4003-FL","price":679.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"nissan-gt-r-r35-front-rotor-pair-380-34","title":"Nissan GT-R R35 Front Two-Piece Rotor Pair — 380×34mm","description":"\u003cp\u003e\u003cstrong\u003eR35 GT-R front rotors — 380 × 34 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEarly R35s run a 380 × 34 mm front disc; later cars moved to 390 × 32.7 mm. The diameter went up and the thickness went down, so the two are not interchangeable in either direction — a 390 mm disc will not fit a caliper set up for 380 mm, and a 380 mm disc leaves later pads overhanging.\u003c\/p\u003e\n\u003cp\u003eG3500 high-carbon ring, 34 mm thick against a 32.0 mm minimum, 48.7 mm total height, 68 mm centre bore, 5 bolt holes, 6061-T6 hat with stainless floating hardware. The 380 mm ring has less swept area than the later 390 mm disc, so pad choice matters more on an early car.\u003c\/p\u003e\n\u003cp\u003eMeasure diameter and thickness together: 380 mm and 34 mm. The later disc is 390 mm at 32.7 mm, so a disc reading 32.7 mm at the edge is not this part even if the face looks close under a wheel.\u003c\/p\u003e\n\u003cp\u003eOE reference 40206JF20A · Minimum thickness 32.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eR35 front, 380 × 34 mm — OE 40206JF20A. Later cars use the 390 × 32.7 mm pair, OE 40206KB50A and 40206KJ10A.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eFixed suits a road GT-R. Full-floating is what most track cars run; the low-speed rattle is expected.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eOn the 380 mm cars the pad sweep is narrower — check pad wear across the face, not just at the outer edge.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267395027169,"sku":"ZR-T-4001-FL","price":639.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"nissan-gt-r-r35-rear-rotor-pair-380-30","title":"Nissan GT-R R35 Rear Two-Piece Rotor Pair — 380×30mm","description":"\u003cp\u003e\u003cstrong\u003eR35 GT-R rear rotors — 380 × 30 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe rear disc on the R35 is 380 mm — the same diameter as the early front disc and 10 mm smaller than the later one — with a 62 mm hat and the parking brake drum inside it. On a car that puts this much load through the front, the rear disc is usually the last thing replaced, which is why scored drums and seized shoes are common.\u003c\/p\u003e\n\u003cp\u003eG3500 high-carbon ring with integrated drum, 30 mm thick against a 28.0 mm minimum, 62 mm total height, 68 mm centre bore, 5 bolt holes, 6061-T6 hat.\u003c\/p\u003e\n\u003cp\u003e380 mm face, 30 mm thick, 62 mm hat with the drum inside. The front disc of an early R35 is also 380 mm — the difference is the drum and the 48.7 mm front hat, so check the hat height before ordering.\u003c\/p\u003e\n\u003cp\u003eOE reference 43206KJ10A · Minimum thickness 28.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eR35 rear, 380 × 30 mm with drum — OE 43206KJ10A. Not the 380 × 28 mm BMW rear disc and not the 370 × 24 mm.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eRear: Fixed is right for almost every car. Full-floating only if you run the car hard enough to cook rear pads.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eChange the parking brake shoes with the disc if the drum face is scored. Bed in the service brakes, then set and release the parking brake a few times from walking speed.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267395092705,"sku":"ZR-T-4002-FL","price":729.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"audi-rs3-8y-front-rotor-pair-374-36","title":"Audi RS3 8Y Front Two-Piece Rotor Pair — 374×36mm","description":"\u003cp\u003e\u003cstrong\u003eAudi RS3 8Y front rotors — 374 × 36 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e374 mm is an awkward number, and that is exactly why it is easy to buy the wrong disc. The 8Y RS3 runs 374 × 36 mm; the 8V ran 370 × 34 mm. Four millimetres of diameter and two of thickness, and nothing between them is interchangeable — pads, calipers and disc all differ.\u003c\/p\u003e\n\u003cp\u003eG3500 high-carbon ring at 374 × 36 mm, 34.0 mm minimum, 50 mm total height, 65 mm centre bore, 5 bolt holes, 6061-T6 aluminium hat, stainless floating hardware. The 36 mm ring carries more heat capacity than the 34 mm disc it replaces, which is why it survives repeated stops without going blue.\u003c\/p\u003e\n\u003cp\u003e374 is the number to look for, not 370. Measure across the face at two points to rule out a worn 8V disc, then check thickness — 36 mm here against 34 mm on the 8V, on a 50 mm hat against 59.8 mm.\u003c\/p\u003e\n\u003cp\u003eOE reference 4M0615301BJ · Minimum thickness 34.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eRS3 8Y front, 374 × 36 mm — OE 4M0615301BJ. The 8V disc is 370 × 34 mm, OE 8V0615301D and variants, and will not fit.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eThe 8Y is front-heavy under braking; Full-floating is what we recommend for spirited road use and track days. Fixed is fine for a daily.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eFive-cylinder cars tend to run hot pads. Bed in with 6–8 stops and let the disc cool fully before the first hard use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267395158241,"sku":"ZR-T-1172-FL","price":599.0,"currency_code":"USD","in_stock":true},{"title":"Fixed","offer_id":51267395125473,"sku":"ZR-T-1172-FX","price":549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"audi-rs3-8v-8y-rear-rotor-pair-310-22","title":"Audi RS3 8V \/ 8Y Rear Two-Piece Rotor Pair — 309.9×22mm","description":"\u003cp\u003e\u003cstrong\u003eAudi RS3 8V \/ 8Y rear rotors — 309.9 × 22 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e309.9 mm, not 310. The decimal is not a rounding artefact — it is the actual diameter, and it is what separates this disc from the 310 × 22 mm used on the TT RS. Half a millimetre of diameter and a different hat, and the two do not swap.\u003c\/p\u003e\n\u003cp\u003eG3500 high-carbon ring at 309.9 × 22 mm, 20.0 mm minimum, 48.5 mm total height, 65 mm centre bore, 5 bolt holes, 6061-T6 hat. At 22 mm from new there is no resurfacing margin, so a scored face means replacement, not machining.\u003c\/p\u003e\n\u003cp\u003eDigital calipers will read 309.9, not 310. If you measure 310.0 on a 58.6 mm hat you have the TT RS disc; if the hat is 48.5 mm, you have this one. The height decides it faster than the diameter does.\u003c\/p\u003e\n\u003cp\u003eOE reference 1K0615601N · Minimum thickness 20.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eRS3 8V and 8Y rear, 309.9 × 22 mm — OE 1K0615601N. The TT RS 8J rear disc is 310 × 22 mm at a 58.6 mm hat and is a different part.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eRear axle on a road car: Fixed. There is no meaningful gain from floating hardware at the rear unless the car is used on track.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eThe rear disc on these cars is thin from new; at 20.0 mm it is done. Do not resurface it — there is not enough material left to stay within spec.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267395420385,"sku":"ZR-T-2041-FL","price":439.0,"currency_code":"USD","in_stock":true},{"title":"Fixed","offer_id":51267395387617,"sku":"ZR-T-2041-FX","price":389.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"audi-rs3-8v-front-rotor-pair-370-34","title":"Audi RS3 8V Front Two-Piece Rotor Pair — 370×34mm","description":"\u003cp\u003e\u003cstrong\u003eAudi RS3 8V front rotors — 370 × 34 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 8V RS3 front disc is 370 × 34 mm. The TT RS 8J uses the same 370 mm diameter at 32 mm thick, and the 8Y RS3 moved to 374 × 36 mm. Three cars, three fronts, all within 4 mm of each other.\u003c\/p\u003e\n\u003cp\u003eG3500 high-carbon ring, 34 mm thick against a 32.0 mm minimum, 59.8 mm total height, 65 mm centre bore, 5 bolt holes, 6061-T6 hat with stainless floating hardware. 34 mm is the thick end for a road disc this size, and it is where the heat capacity comes from.\u003c\/p\u003e\n\u003cp\u003e370 mm diameter, 34 mm thickness, 59.8 mm hat. The TT RS disc shares the diameter at 32 mm and a 49.8 mm hat, so thickness and height are what separate them — check both before you order, not just the diameter on the listing.\u003c\/p\u003e\n\u003cp\u003eOE reference 8V0615301D \/ 8V0615301H \/ 8V0615301Q \/ 8V0615301R · Minimum thickness 32.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eRS3 8V front, 370 × 34 mm — OE 8V0615301D, 8V0615301H, 8V0615301Q and 8V0615301R. The TT RS 8J disc is 370 × 32 mm and will not work.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eFixed for road, Full-floating for track. On the 8V the caliper is the limiting factor for heat, not the disc — floating hardware helps the disc, not the caliper.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eWith four OE references for this disc, confirm by the number on the old disc rather than the model year. Bed in with 6–8 stops.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267395518689,"sku":"ZR-T-3066-FL","price":599.0,"currency_code":"USD","in_stock":true},{"title":"Fixed","offer_id":51267395485921,"sku":"ZR-T-3066-FX","price":549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"audi-tt-rs-8j-front-rotor-pair-370-32","title":"Audi TT RS 8J Front Two-Piece Rotor Pair — 370×32mm","description":"\u003cp\u003e\u003cstrong\u003eAudi TT RS 8J front rotors — 370 × 32 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSame 370 mm diameter as the RS3 8V front disc, two millimetres thinner, and a hat that is 10 mm shorter. The RS3 disc is 370 × 34 mm at 59.8 mm height; this one is 370 × 32 mm at 49.8 mm. Fitting the wrong one is a real risk because the diameter matches and nothing else does.\u003c\/p\u003e\n\u003cp\u003eG3500 high-carbon ring at 370 × 32 mm, 30.0 mm minimum, 49.8 mm total height, 65 mm centre bore, 5 bolt holes, 6061-T6 aluminium hat, stainless floating hardware. At 32 mm it sits between the 30 mm and 34 mm discs used elsewhere in the range, which is another reason to measure rather than assume.\u003c\/p\u003e\n\u003cp\u003e370 mm across the face at 32 mm thick, on a 49.8 mm hat. The RS3 8V disc matches the diameter, is 2 mm thicker and sits 10 mm higher — a 2 mm difference you can measure with calipers, and a 10 mm one you can see.\u003c\/p\u003e\n\u003cp\u003eOE reference 8J0615301E \/ 8J0615301F \/ 8J0615301K · Minimum thickness 30.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eTT RS 8J front, 370 × 32 mm — OE 8J0615301E, 8J0615301F and 8J0615301K. The RS3 8V disc is 370 × 34 mm at a 59.8 mm hat and will not seat.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eA lighter car than the RS3, so Fixed is a reasonable default; Full-floating if you track it.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eThinner disc, less heat margin — use a pad rated for the temperatures you actually see, and bed in with 6–8 stops.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267395780833,"sku":"ZR-T-3173-FL","price":599.0,"currency_code":"USD","in_stock":true},{"title":"Fixed","offer_id":51267395748065,"sku":"ZR-T-3173-FX","price":549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"},{"product_id":"audi-tt-rs-8j-rear-rotor-pair-310-22","title":"Audi TT RS 8J Rear Two-Piece Rotor Pair — 310×22mm","description":"\u003cp\u003e\u003cstrong\u003eTT RS 8J rear rotors — 310 × 22 mm, sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e310 mm, 58.6 mm hat. The RS3 rear disc is 309.9 mm with a 48.5 mm hat — a tenth of a millimetre in diameter and 10 mm in offset. They are different parts and they do not interchange, and the listing photos look the same.\u003c\/p\u003e\n\u003cp\u003eG3500 high-carbon ring, 22 mm thick against a 20.0 mm minimum, 65 mm centre bore, 5 bolt holes, 6061-T6 hat, stainless floating hardware on the fixed variant. 48.5 mm is the RS3 height; this one sits 10 mm taller. At 22 mm there is little material to give up, so measure it before every pad change rather than every other one.\u003c\/p\u003e\n\u003cp\u003e310.0 mm at 58.6 mm hat height. The RS3 rear disc is 309.9 mm at 48.5 mm — the diameter difference is not measurable by hand, the height difference is 10 mm and obvious with a straight edge.\u003c\/p\u003e\n\u003cp\u003eOE reference 8J0615601A · Minimum thickness 20.0 mm · Bolt holes 5\u003c\/p\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFitment check\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eTT RS 8J rear, 310 × 22 mm — OE 8J0615601A. The RS3 rear disc is 309.9 × 22 mm at a 48.5 mm hat and is a different part.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eFixed or full-floating — which one?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eRear, road car: Fixed. Floating hardware at the rear of a light car buys nothing you will feel.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003ePads, bedding and ring replacement\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eRear discs at 22 mm start thin. Measure at four points; 20.0 mm is the limit and there is no resurfacing margin.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e▸ \u003cstrong\u003eLead time\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eBuilt to order. Production takes 10–12 days. Left and right are matched and marked before packing. Transit time depends on destination and service — we confirm shipping and delivery dates by email before you pay.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"ZORVANT","offers":[{"title":"Full-floating","offer_id":51267395846369,"sku":"ZR-T-2039-FL","price":439.0,"currency_code":"USD","in_stock":true},{"title":"Fixed","offer_id":51267395813601,"sku":"ZR-T-2039-FX","price":389.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1901\/3857\/files\/rotor-floating-2000.png?v=1793682959"}],"url":"https:\/\/zorvantbrake.com\/collections\/two-piece-rotors.oembed","provider":"ZORVANT","version":"1.0","type":"link"}