Easton Stem/Bar Adaptor

With most mountain bike handlebar manufacturers turning to a 31.8 clamp diameter, the majority of stems are manufactured for that dimension as well. Easton’s Stem/Bar Adaptor is a simple shim that allows riders to run older bars (25.4 mm) with modern stems. 

• Increases handlebar clamp diameter from 25.4 to 31.8 mm
• Compatible with 31.8 mm stems