Compatible with
Box One X5 fork with tapered steerer tube
Box One X2 fork with straight steerer tube
Box One XL fork with straight steerer tube
Box One XL Pro Lite fork with straight steerer tube
Box Two™ Integrated Headsets are designed for tapered frames and forks but also includes an adapter which allows you to run a straight 1 1/8-inch fork in a tapered head tube. It has a 45x45 degree upper bearing and a 36x45 degree lower bearing.
features an aluminum top cap, CNC-machined bearing cover, and split crown race with super-smooth rolling, precision bearings.
