Features: The 7075 T651 aluminum we use for these sprockets receives an extra tempering which reduces distortion and provides optimal thickness vs. typically thinner 7075 T6 sprockets. 100% machined, no stamping or grinding. Optimal tooth thickness results...
Features: The inner ring is made of aluminum 7075.T6 and the ring gear is made of high-performance steel.. Self-cleaning dirt groove between each tooth prevents dirt accumulation.. Longer life than standard aluminum sprockets and lighter than steel sprockets..