Ratchet-and-pawl clutch provides chain security and can be turned on and off with a switch

Pros: Will get your star-fangled nut perfectly aligned and at the correct depth with no pinched fingers

11 speed: 9

Ventilation: Well ventilated with 13 aerodynamically placed vents to keep you cool

Sun Ringle Duroc 30 PRO Rear Wheel - XD Driver - 12x148mm Boost - 6 Bolt - Rear - 29 Inch Heavy/Bulky Ratchet-and-pawl clutch provides chain securityBuilding upon the already proven Duroc platform the new Duroc 30 Pro features the same trusted double wall, welded alloy tubeless rim but is now blessed with the gift of a fast engaging and all new Super Bubba X hub. The Super Bubba X utilizes one 45 tooth ring, combined with a six pawl freehub body, this results in 4 degrees of engagement and shaves 55g to bring the total weight of the rear hub to 285g. It also means that there are no threads within