Problem Solvers Rear 6mm Booster Kit - Center Lock Hub. Booster thru-axle hub spacer kits are designed to give your non-Boost front and rear thru-axle hubs the boost they need to fit any Boost-compatible frame or fork.
Express delivery and return policies
Free shipping on orders over $30
Processing time: 1-2 Days
Shipping time: 3-5 Days(According to the logistics method and delivery address)
Items can be returned or exchanged within 30 days !
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