Fit models with a 1-1/8" stem clamp and a 1-1/8" handlebar Handlebar clamps can be pivoted to desired fore and aft location to achieve ideal riding position Engineered and tested for maximum strength and durability CNC-machined from billet 6061-T6 aluminum, then anodized for long-lasting good looks Made in the U.S.A.. RISER 1.75 - 1-1/8X1-1/8