Handlebar Shims converts 31.8 to 28.6 MX Bars

Use these to convert any 1 1/8" (28.6mm) motocross handlebars to work in your existing MTB standard 31.8mm stem. Includes 2 pairs of shims used to convert your 31.8 diameter stem to 28.6 for using MX bars with your Surron.