Team Associated 48 Pitch "Brushless" Spur Gear. These spur gears are compatible with a variety of Team Associated slipper clutch equipped vehicles. Featuring a smaller design, these gears moves the motor forward for better balance and more predictable handling, and allow the use of smaller pinion gears. They allow gear ratios that are optimized for 17.5, 13.5, and 10.5 motors.