Thomson Elite 25.4 Bicycle Stem (1-1/8 x 15-Degree x 120mm, Black) Clamp Diameter: 25.4mmClamp Diameter: 25.4mmSteer Tube Clamp Diameter: 1-1/8"Steerer Tube: 1-1/8" ThreadlessStem Color: BlackStem Length: 120mmStem Rise: 15 degWeight: 199g