Booster Front Hub Spacing Kit - Center Lock Tires and Tubes Thru-axle hubs just don’t fit

Thru-axle hubs just don’t fit in the truing stand

These adapters clamp on to the seat tube so you can use your braze-on derailleur on a conventional frame

Just stick ‘em on for more sticktion

this handlebar-space-saver allows users to mount an I-Spec II shifter to the handlebar without requiring a Shimano I-Spec II brake lever

Sold individually

Booster Front Hub Spacing Kit - Center Lock Tires and Tubes Thru-axle hubs just don’t fitBooster 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. Kit includes Center Lock Adaptor to allow riders to use 6 bolt rotors on Shimano Center Lock compatible hubs. Center Lock to 6 Bolt Front Booster Kit Instructions