CNC Boost Hub Conversion Spacer Kit for Mountain Bikes, Front 100 x 15 to 110 x 15 mm or Rear 142 x 12 to 148 x 12 mm, Black
Black CNC hub conversion hardware for selected non-Boost hubs. Choose a front 100 x 15 to 110 x 15 mm kit or a rear 142 x 12 to 148 x 12 mm kit; front and rear sets are different.





