Surly 30.0mm Seat Post Collars MOTION PLATE It should automatically adjust to

It should automatically adjust to the different screw sizes

400mm Saddle Rail Compatibility RoundlOval (7x9 & 7x10)   FEATURES

Bottle holder and nutrition compartment for ride fuel

Replacement Pulley Wheels for SRAM NX Eagle Rear Derailleurs

Through Bar and Rail Bar

Surly 30.0mm Seat Post Collars MOTION PLATE It should automatically adjust toSURLY 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