These seatpost clamps are designed to work with Pinhead's uniquely keyed locking bolt.
- Fits both 28.6mm/31.8mm diameter frames
- Only includes collar, does not include bolt, lock or key
- To be used as an upgrade with Pinhead's 3-pack and 4-pack lock sets for a better fit with the seat collar lock,
This product was added to our catalog on April 25, 2018