These seatpost clamps are designed to work with Pinhead's uniquely keyed locking bolt.
- Fits 34.9mm 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
Manufacturer Part Number PH-117
Model Pinhead Seat Collar