Convert exisiting Roval wheels with 142+ to be used with Boost spacing (110 /148mm) suspension forks & frames. Kits include front & rear hub end caps rotor spacers & kit specific rotor bolts. Compatible with select MY13-16 Roval Wheels. Choose the appropriate SKU for each wheelset. Each conversion kit requires the existing rear wheel to be re-dished to center. Consult an authorized dealer to perform this operation.