{"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\/zh\/products\/audi-tt-rs-8j-rear-rotor-pair-310-22","provider":"ZORVANT","version":"1.0","type":"link"}