December 1, 2010
Uber light weight. This cassette is half what a regular cassette weight. The open design helps eleminate crud build up
High cost. Tends to make a bit more clunk noises due to it's open design.
Super light weight cassette, perfect the elite rider or the person who just wants the best and lightest. The only down side comes when its time to replace. Performance is great as the shifting ramps efficiently shift up as well as drop down. The open design allows a major amount of crud to fall through without packing in between the gears.