Shibata GRK Racing Hub Clamp-Type 4mm (2) (Black)

Shibata GRK Racing Hub Clamp-Type 4mm (R31S135BK), sold as a pair. Precision aluminum hub machined in Japan for minimal runout, with a clamp-style mount that keeps the axle pin from dropping out during wheel changes and a point-contact support for a sharper, more direct steering feel.

Fits: GS2 MOD / EVO / NOB with standard rear hub carriers and axles; GRK5 with stock rear knuckles and universal rear axles (e.g. R31W205); R31S323 inset rear knuckles and R31S334 multi-use rear knuckles with their included axles.