Surly Stainless Seatpost Clamp is cast and polished and won’t rust or chip paint because they can’t (even the black ones!). They’re shiny! They look good! And most importantly they deliver the clampability seatposts crave.30.0mm and 33.1mm sizes Color: silver or black
| Material | Aluminum |
| Type | Bolt-On |
| Color | Black, Silver |
| Diameter | 30, 33.1 |
| Defined Color | Black, Silver |
