ZIPP SUPER DRIVE 9 61803/61903 Rear Bearing (x2) #11.2018.061.002

The ZIPP Super 9 61803/61903 bearing kit is designed for servicing the rear hub of Super-9 track and time trial wheels. It combines two different bearing sizes to support all hub load points, ensuring a comprehensive, matching replacement in a single service.

Made from steel, this service kit restores original rolling smoothness to a hub that has developed play or friction after multiple seasons of racing. Installation requires the appropriate press tool for ZIPP hubs to prevent stress on the bearing races.