Convert exisiting Roval wheels with 142 or 142+ to be used with Boost spacing (110 /148mm) suspension forks and frames.Kits include front and rear hub end caps, rotor spacers, and 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..