MOOSE RACING Rear Sprocket - 50 Tooth - Yamaha 1211-853-50-11 O2 Sensor Bung Kit We strive to stock the

We strive to stock the parts that we race with so inventory stock will show on the website

Unique four-valve design increases air flow and performance

Semi-ventilated polyester stretch fabric

read fuel injector pulse width and duty cycle

There is no cutting required to your stock fender for easy installation

MOOSE RACING Rear Sprocket - 50 Tooth - Yamaha 1211-853-50-11 O2 Sensor Bung Kit We strive to stock theThe 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