This conversion kit features the original oversize HIC double clamp and a matching IHC Shim. This allows you to run an IHC compression system with the benefits of Apex product quality. The conversion shim is not compatible with any Apex forks or handlebars Part With Bolts Without Bolts HIC Clamp IHC-HIC Shim 89g *No bolt* 75g 48g Clamp inner diameter: 35mm (Oversized) Shim Inner diameter: 24.5mm Shim Outer Diameter: 31.5mm Compression Bolt: Not included To get the most out of your clamp, we suggest that you avoid over tightening your bolts. This can be done by gradually tightening one bolt at a time. You do not need to use all of your strength to tighten your clamp. Be aware of the amount of pressure/force you are using and test the feel of your scooter when you think it is tight.