Part of Pinhead's patented locking fastener system that secures individual bike components from theft.
- Fits both 28.6mm / 31.8mm diameter frames
- Only includes collar, does not include bolt, lock and key
- To be used as an upgrade with LK2081, LK2082, and LK2085 lock sets for a better fit with the seat collar lock
|Seat Collar Diameter||31.8mm|