Zipp Wheel Axle End Cap Set Rear ZR1 Disc Brake N3W Campagnolo BX PSI continuous relaunches and quick changes

continuous relaunches and quick changes of direction… making it an excellent choice for certain disciplines on the track

giving you extra pedaling efficiency when you find yourself on longer or faster trips

The S3 combines standout features from two renowned performance favorites

for a smoother ride and greater traction

plus powerful and controllable deceleration

Zipp Wheel Axle End Cap Set Rear ZR1 Disc Brake N3W Campagnolo BX PSI continuous relaunches and quick changesReplacement end caps for Zipp ZR1 rear hubs with Campagnolo N3W freewheel body for disc brakes. Specifications Material: aluminum Compatibility hubs: Zipp ZR1 Disc Brake rear hubs with Campagnolo N3W freewheel body Axle standard : 12x142 mm thru axle type Color: black anodized Mfr Claimed Weight 14g