The latest edition to Profile Racings MTB Cassette Hub series Specifically designed for the growing number of hybrid MTB downhill and MTB freestyle bikes Disk brake only Same features as Profile Racings 6−Speed Cassette Hub 36 or 32 hole 135mm width Polished or Black anodized Comes with choice of cog (9T 18T). Also available with Shimano compatible driver. (The standard driver is compatible with Profile 12−18T cogs.)
It is important to also replace your chain whenever you install a new driver. A worn, stretched chain will cause your driver to wear out much faster.