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 in maximum tooth and chain contact
Fits 2013-on RR, 2014-on RS models, and XTrainer
Moose Racing Beta Aluminum Sprocket (Late) Red Produced by Moose Racing of USA
excellent product but slow shipping mostly due to both Sierra not getting the products I ordered to the shipping company quickly and then the shipping route going way past the delivery destination and had to backtrack to get here. I see why costs of shipping are high. In the end, the parts are a nice addition to my bike!