FSA's new Vibration Absorbing Stem for Gravel application is the first of its kind. Featuring significant vibration damping via 360-degree handlebar isolation. In turn, reducing forces and impacts to the rider's hands and arms. The result being less arm pump and hand fatigue for a better ride and shorter recovery. - Length - 80, 90, 100mm - 31.8mm handlebar clamp diameter - 3 Color bushing options - Light Grey (70A) Comfort - Dark Grey (80A) Sport - Dark Black (90A) Race - 291 grams (31.8x100mm) - Not compatible with bars featuring a center cable routing port for internal cable routing through the stem