Answer Mini Cassette Cogs are CNC machined from 7075 aluminum. Extra machined holes help eliminate unnecessary weight. Fits Answer cassette hubs only.
Weights12T: 0.3 oz13T: 0.4 oz14T: 0.5 oz15T: 0.6 oz16T: 0.6 oz17T: 0.6 oz18T: 0.8 oz