Quick Summary
The BSFHQS Bike Seatpost Clamp is a quick release aluminium tube clamp in purple, sized at 28.6 mm. It is intended for seat tube use and includes a quick release and lock design for adjusting or removing the clamp without tools.
For this version, the stated fit is for a 25.4 mm bike seat post, and the frame seat tube size should match the 28.6 mm clamp size. Check both the seat post and the frame seat tube before choosing an offer.
What to Compare Before Buying
- Clamp size: This version is 28.6 mm. Compare that with the frame seat tube size you need to fit.
- Seat post fit: The stated fit for this size is a 25.4 mm bike seat post. Check that against the post already on the bike.
- Release type: It uses a quick release and lock design. Compare that with whether you want tool-free adjustment.
- Colour: This version is purple. Make sure it matches the variant you want.
Compatibility, Size and Fit
The 28.6 mm clamp is described as suiting a 25.4 mm bike seat post, with the frame seat tube needing to match the clamp size. The product description also gives other clamp sizes in the range, but this page is for the 28.6 mm version.
Because seat tube and seat post sizes are both relevant here, compare the exact measurements on your bike before ordering. That is the main check for avoiding the wrong fit.
Before You Decide
Confirm the 28.6 mm clamp size, the 25.4 mm seat post fit, and the purple colour before choosing an offer. If your bike uses a different frame seat tube size, a different version is needed.









