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Booster thru-axle hub spacer kits are designed to give your non-Boost rear thru-axle hubs the boost they need to fit any Boost-compatible frame.
6mm Spacer kit adapts 142 x 12mm rear hub to 148 x 12mm
Includes 6mm rotor spacer w/ hardware and one 6mm axle spacer
Rear wheel needs to be re-dished 3mm to non-drive side
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