Traxxas Transmission Speed Gear Set, 9.7:1 Reduction Ratio/ 11-Tooth Pinion Gear: TRX-4M, TRX4M

Boost the top end of your TRX-4M^™ with this Speed gear set. The gear set features a high 9.7:1 reduction ratio for maximum speed. The set includes all transmission gears and a new 11-tooth motor pinion. 

Not recommended for snow, mud, rock crawling, or other high-resistance surfaces.