ROTOR's RVOLVER system with SRAM XDR free hub body for rim brake bicycles. The innovative design features a sliding clutch system that disengages the ring from the pawls while coasting to reduce friction. When you resume pedaling, the ratchet ring re-engages to deliver an instant power transfer.
Weight: J-bend 20H: 225 g / J-bend 24H: 226 g / J-bend 2:1 24H: 227 g / Straight Pull 24H: 227 g
Holes Number: 20H/24H
Free-hub body type: SRAM XDR
Spoke type flange: J-Bend special design and Straight Pull
Bearings: 6802 / 6902
Compatible with SRAM XDR 12s