Slacker MTB Hex Key Axle Inserts allow you to use our Slacker digital suspension tuner on your mountain bike.
- Requires 5, 6 or 8 mm hex key thru axles.
- Requires Slacker V3 or V4.
- Notes: For Slacker V2, order the Axle Insert Kit (sold separately) which includes the Universal Fork / Seat Post Adapter. This system will NOT work with the solid magnet on original Slacker V1.