The all-new AngleSet threadless headset makes it possible to change the game. With Angleset the head angle of a mountain bike can be transformed with ease, as the lowstack-height AngleSet offers up to six offset angle adjustment. With steeper or slacker adjustments from 0.5 to 1.5 degrees, dialing in the perfect geometry to attack the trail is a breeze. The patent-pending design of AngleSet is head-tube length independent and fits most popular head-tube standards. A self-aligning feature between the bearings and the steerer-tube ensures a perfect fit and makes fork installation a snap.Machined from 7075 T-6 AluminiumSteeper or Slacker +/- 0.5, +/- 1.0, +/- 1.5 cups included.Durable steel crown raceDependable black oxide, sealed bearingsInterlock spacer compatibleFits Headtube Size: 44mm Upper, 56mm LowerSteerer Size: 1 1/8"-1.5" TaperedStack Height: 13mm-Upper, 14mm-LowerWeight: 129g