Bontrager Race XXX Lite Carbon OS Stem 110mm ±12° 31.8mm Clamp 1 1/8" - Used Carbon Fiber Stem 110mm Length 12 Degree plus or minus rise 31.8mm Handlebar clamp diameter  1 1/8" Steerer tube Diameter Item Shipped within 24hrs. with tracking Check compatibility before ordering Any questions please send Message Thanks for shopping  Peddle Collectibles