Surly 30.0mm Seat Post Collars S3-PRODUCT_WORKSHOP Built strong with aerospace grade

Built strong with aerospace grade aluminum and our trusted narrow wide tooth profiling

It comes in a standard width of 735mm but if 685mm is more your style

two slits provide extra strap attachment options

they designed a completely new tooth profile: It prevents the chain from falling off without forcing it onto the teeth

Surly 30.0mm Seat Post Collars S3-PRODUCT_WORKSHOP Built strong with aerospace gradeSURLY 30MM SEAT POST COLLARS Surly 30mm Stainless Steel Seat Post 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 that seat posts crave. COLOURS: Silver Black