Sold as a pair — one left, one right, matched. Price is for the pair.
数量（对）
PRICE IS NOT FINAL
Prices are for the standard build and exclude freight.
Your final price is confirmed on the formal invoice before production.
F87 M2 / F80 M3 / F82 M4 rear rotors — 370 × 24 mm, sold as a pair.
The 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.
G3500 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.
Read 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.
F87, F80 and F82 rear, 370 × 24 mm with drum — OE 34212284811 and 34212284812. Not the 380 × 28 mm rear disc.
▸ Fixed or full-floating — which one?
Rear 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.
▸ Pads, bedding and ring replacement
Traction 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.
▸ Lead time
Built 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.
