Rear 148x12 Shimano driver and axle (black widgets)
Converts your 148x12 XD driver Onyx hub to 148x12 Shimano (10 speed)
Onyx hubs transfer power from your pedals to your rear bike wheel instantly for faster acceleration and more control. Hybrid ceramic bearings reduce front and rear wheel rolling resistance to the point of disbelief. The patented sprag clutch design removes the play and clickety–clack of pawls against teeth in the rear hub to silence your coasting.