The Arc SCS is part of Tilt’s Stage II collection and features a profile machined face which is structurally balanced, putting the material and strength where you need it. Custom bolts with a 6mm hex key drive and 50% larger threads provide you more clamping power and help keep your bars in place and compression tight. Every clamp bolt from Tilt comes with pre-applied anti-seize to prevent the bolts from seizing to the clamp. For added compatibility, the removable shim allows use with both size handlebars. Specifications Weight: 7.9ozMaterial: Anodized billet 6061-T6 aluminumHeight: 3.0″Hardware: Pregreased custom bolts Compatibility Handlebars: Standard 1-¼" and oversized 1-⅜"Shim: 38.1mm HeightClamp & Compression Bolts: M8Compression Washer: M8Fork: 1-⅛" Threadless steertube Included Clamp and compression bolts, compression washer, and shim