Problem Solvers Rear 9mm Super Booster Kit - 6-Bolt Hub

Problem Solvers Rear 9mm Super Booster Kit - 6-Bolt Hub. The Super Booster hub spacer kit is designed to give your 148mm rear thru-axle hubs the extra boost they need to fit any 157mm frame.

9mm spacer kit adapts a 148 x 12mm rear hub to a 157 x 12mm spaced frame (Boost to SuperBoost)

Requires re-dishing the rear wheel 4.5mm to the non-drive side

Made from AL-6061 aluminum