Rox Risers offer the ability to adapt our 1 1/8″ Flexx Handlebar to a 7/8″ bar clamp. We offer the Rox Riser in both 2 and 3.5 inch configurations. Rox Risers further allow the rider to fine tune their ergonomics to their specific needs. If you are not sure which Rox Riser you need please email or call our Ergonomic Experts.