Surly Seatpost Clamp

This clamp has a diameter of 30.0 mm. You should measure your frame's seat tube outer diameter or check your current clamp's specifications to ensure a precise match before purchasing.

Stainless steel is significantly more resistant to rust and corrosion than aluminum, especially in wet or salty environments. It also offers superior strength, allowing for a secure hold without the risk of stripping threads over time.

This is a bolt-on clamp. It requires a hex key or wrench to tighten, which provides a more secure, tamper-resistant fit compared to quick-release levers.

The cast stainless steel construction is highly durable and resistant to the chipping often seen on painted or anodized clamps. While any metal can develop fine scratches over time, the polished finish is designed to maintain its aesthetic through regular use and weather exposure.

Very little. Because it is made from stainless steel, it is largely maintenance-free. We recommend occasionally checking the bolt tension to ensure it remains secure, but you do not need to worry about rust or surface degradation.