Wheels Manufacturing Seatpost Collar

This collar is specifically designed for a 33.1mm diameter, which is the standard size for most Surly bicycle frames. Please verify your frame's seat tube diameter before purchasing, as even a small discrepancy can prevent a proper fit.

The bolt-and-barrel nut design provides a more consistent, even clamping force around the seatpost, which is ideal for preventing slippage and creaking. It is a set-it-and-forget-it solution that is more secure and less prone to mechanical failure than quick-release mechanisms.

This component weighs 31 grams. It is CNC-machined from aluminum, balancing structural durability with a lightweight profile that won't add unnecessary bulk to your build.

Yes, the anodized finish is durable and designed to resist wear and corrosion from the elements. While it offers aesthetic customization, it also adds a protective layer to the aluminum, maintaining its integrity through regular use.

Installation requires a standard hex key to tighten the stainless steel bolt. Because it uses a bolt-and-barrel nut system, you can easily achieve precise torque to secure your seatpost without over-tightening.