Mountain Bike Freehub, Rear Hub Body 8/9/10/11 Speed Freewheel Body for GIANT for Trek wheels Mountain Bike Freehubs Replacement Parts, Easy to install

It's not often that I change a free hub but it made a big difference in resistance when free wheeling. Its an over all improvement of an otherwise neglected part of the hub. I didnt realize how much of a difference it made until I replaced it. It even sounds better than my old free hub.