New Urban Artt SCS Compression Clamps in at the Ripped Knees Scooter Store California designed & at an amazing price one of the best scs clamps for 2013 4 Bolt SCS Clamp with Shim for oversized & standard sized bars Features 6061 T6 Aluminium Height 90mm Diameter 349mm & 318mm with shim Weight 195 grams