{"title":"BMW M2\/3\/4 F80\/82\/87","description":null,"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"}],"url":"https:\/\/zorvantbrake.com\/zh\/collections\/bmw-m2-3-4-f80-82-87.oembed","provider":"ZORVANT","version":"1.0","type":"link"}