This is longer front hub used on later RR and the RRz bikes with Formula brakes is now discontinued, the standard hub is now supplied with a disc spacer and larger wheel spacers
The new 2022 GRC GP12 is the latest of the Italian MiniGP Bikes to hit the grid, GRC have been building high quality bikes since the early 90s with many champions and now MiniGP has taken over thei...
Front wheel bearings and spacer tube for the RR/RSR standard front hub, its important that the spacer tube is between the bearings and not too short or bearing life will suffer
