1. THE JQ Products 41 Tooth Overdrive Front Ring Gear is intended for use with the optional 11t bevel gear. As such it is an option part mainly used on astroturf tracks. The smaller 41t (43 is stock) is one of the most highly recommended option parts for THE Car. The overdrive ring gear makes the front tires pull more on power. Team drivers who have tried this gear, feel that it makes THE Car easier to drive on power, as the rear end stays more planted. It also changes the feel of the steering, and for most drivers makes it easier to hold their line in corners.