The Race Face AEffect 35mm Stem is a new design that brings the advantages of 35 to the XC/Trail crowd at a mid-level pricepoint while maintaining a refined Race Face look. Race Face AEffect 35mm Stem Features Forged and machined from 6061 aluminum Interlocking 4 bolt bar clamp secures your bar and distributes loads away from bolts and into the body. BUILT FOR: XC/Trail SIZE: 50, 60, 70, 80, 90mm RISE: + or - 6° (reversible) BAR DIAMETER: 35mm STACK HEIGHT: 39mm WEIGHT: 155g (60mm)