Traxxas TRX-4M Low Range Transmission Gear Set. This optional gearset provides superb crawling speeds ideal for conquering steep and aggressive terrain. Featuring an ultra-low 40.3:1 reduction ratio this gives you maximum rock-climbing power. Traxxas offers a variety of gearsets to suit your application that can be used to customize your vehicle to your preferences. Package includes all transmission gears and an 11t pinion.

Optional Gearsets:

• Lowest Speed:
• TRA9776R: 40.3:1 Reduction Ratio
• TRA9776: 16.6:1 Reduction Ratio
• TRA9776R: 9.7 Reduction Ratio