RFX Race Series Handlebar Riser Kit 28.6mm (Black) Universal Allows Handlebars to be Raised the Following Increments 25mm/30mm/35mm/40mm. These kits fit into the original bar mounts allowing you to raise the handlebars in increments of 5mm from 25mm to 40mm. Available in silver and anoidised black to fit standard (22.2mm) or oversize (28.6mm) bars. Supplied complete with all mounting hardware.