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.

Accessory part for these models:

1/18 Ford® Bronco®

1/18 Land Rover® Defender®