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.
R35 GT-R front rotors — 390 × 32.7 mm, sold as a pair.
On 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.
The 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.
Identification 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.
R35 front, 390 mm — OE 40206KB50A and 40206KJ10A. Earlier cars use the 380 × 34 mm pair, OE 40206JF20A.
▸ Fixed or full-floating — which one?
Fixed 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.
▸ Pads, bedding and ring replacement
Because 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.
▸ 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.
