Tune your FM-A chassis by altering the gear ratio. These gears are an easy way to increase the speed of your machine. This set includes gears to achieve five different ratios (3.5:1, 3.7:1, 4:1, 4.2:1 and 5:1)!
1.4mm Hollow Lightweight Propeller Shaft x1
Reinforced 8T Pinion and G-2 Gears x2 each
620 Ball Bearing x1
Fluorine Coated Gear Shaft x1
Compatible with FM-A, Super X and Super XX chassis cars.