RockShox BoXXer C1 Upper Tube

No, this specific upper tube assembly is engineered exclusively for the BoXXer C1 platform. It will not fit previous generations of BoXXer forks due to differences in chassis design and internal dimensions.

Yes, this is a complete upper tube assembly. It comes with the crown and tapered steerer tube pre-installed, allowing for a direct swap onto your existing lowers.

While it is a direct replacement, installing a crown and steerer assembly requires specific tools like a crown race setter and a torque wrench. If you are not comfortable with suspension service or lack the proper shop tools, we recommend having a certified mechanic perform the installation to ensure safety.

This component is constructed from high-grade aluminum. This material choice balances the need for lightweight performance with the structural rigidity required for aggressive downhill riding.

This part is designed for the air-sprung version of the BoXXer C1. We do not recommend using it with coil-sprung internals as the internal tolerances and sealing surfaces are optimized specifically for the air spring system.