Wheels Manufacturing Bolt-On Seatpost Collar

The 28.6mm measurement refers to the outer diameter of your seat tube, not the seatpost itself. You should measure the outside of your frame's seat tube with a caliper or check your bike manufacturer's specifications to ensure a correct fit.

Bolt-on clamps provide a more secure, permanent hold that is less prone to slipping and theft. They are ideal for riders who do not need to frequently adjust their saddle height and prefer a cleaner, more streamlined look.

Yes, this design is highly reliable. By using a barrel nut, the bolt threads into a captured piece rather than directly into the aluminum body, which significantly reduces the risk of stripping the threads over time.

You will need a standard hex key (Allen wrench) to tighten the bolt. Because it uses a bolt-on design, it is straightforward to install and adjust with basic shop tools.

Absolutely. 6061 aluminum is an industry standard because it offers an excellent balance of high strength and low weight. It is durable enough to handle the clamping forces required to keep your seatpost stable without adding unnecessary bulk.