Problem Solvers Handlebar Shims allow you to use a small diameter handlebar in a modern stem. The 22.2mm to 31.8mm shim allows you to use a BMX style handlebar in a mountain or road stem. Beveled edges smooth the transition from the stem to the handlebar.
Adapts 22.2mm BMX handlebars to 31.8mm stems
The same shim as included with the Surly Sunrise Bar
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