This is a replacement Traxxas Steel Wide-Face 1.0 Metric Spur Gear (Mod1) 50 Tooth.
50-tooth spur gear (1.0 metric pitch) has extra-wide steel teeth for maximum power handling and durability. Traxxas spur gears let you fine-tune the performance of your Traxxas model. Changing gear ratios can help balance acceleration and top speed for different running conditions. Please consult your owner’s manual for more information on recommended gearing options for your specific model.
