keywBooster 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.

• • 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
  ord search: Boost , 12x148