Box One Quick Release Seat Clamp-1 1/4" (31.8mm) col *Zipper Lock System – exclusive

*Zipper Lock System – exclusive zipper lock system keeps pants closed and secure

And they are made in the USA

HARDWARE- Cold-forged and CNC machined aluminum cups

Presses into a PF30 bottom bracket shell with 46mm inner diameter (ID) and 68mm width to allow a threaded bottom bracket to be installed

Box One Quick Release Seat Clamp-1 1/4" (31.8mm) col *Zipper Lock System – exclusiveThe Box One Quick Release Seat Clamp 1 1 4" (31. 8mm) has a proprietary surface treatment at the interface of the quick release lever and the clamp. This ensures smooth operation for the life of the clamp without the use of a bushing. Created from cold forged, CNC machined 6061 T6 aluminum this clamp weighs in at only 28 grams (for the 31. 8mm size). FEATURES Titanium Hardware Lightweight Open Frame Anodized Finish Cold Forged Laser Etched Graphics