HPI Racing is proud to introduce a selection of Pinion Gears ranging from 20T to 35T for the E10 touring car. These 0.6M pinion gears are a perfect fit on the E10, making gear ratio adjustments quick and easy. Each pinion is precision machined to the exact factory tolerances for a smooth gear mesh. A wide range of gears is needed for the various stock and modified motor racing classes, so most racers will carry several different pinion sizes in their pit boxes. Each gear is stamped with the number of teeth for easy identification.