- Ditch the complexity and embrace the silent simplicity of one gear - The XD Singlespeed kit allows you to run a one-speed setup on your XD driver freehub body - Beautifully CNC machined with a black anodized finish - Paired up in combination with the Reverse Colab Chain Tensioner, you've got a solid, hassle free Singlespeed setup for full suspension bikes - Converts any hub with XD freehub wheel into a single speed drive