Zipp ZIPP BEARING KIT - 61903 - ZIPP 30/60 REAR HUB SHELL Black

Zipp ceramic bearing kit for 30/60 rear hubs 61903 This bearing kit offers a gain in watts between 2 and 9w thanks to its very high fluidity. This is obtained with ceramic balls whose performance is at the forefront of road cycling. Compatible with Zipp wheels with a 30/60 rear hub, these bearings offer uncompromising performance. They will be perfect for fierce competitors and professionals who want to make the difference to win the sprints.