Speed Selector's aluminum sheaves are 100% machined, resulting in perfect balance with no wobble. They have potential rim speed capabilities of 20,000 FPM, and are 1/3 to 1/2 of the weight of cast iron sheaves.
Avaiable Companion Sheave Models: 1422, 1922, 2322, 3226, 3230, 4430, 4836