Replace the stock plastic gears, fit TRX4M front or rear axles.
Helical gears offer greater strength and smooth operation than the factory spur gears.
Less vibration, less noise, less wear than stock gears.
CNC machined 20CrMo Alloy Steel Gears, sturdy and durable.
Using this steel gear set will allow for a 9% underdrive to either the front or rear axle.
Description
Overdrive the front(or underdrive the rear) will pull you faster in the front, it allows you to climb better and reduce rollover.
Do not swap gears from different gear sets! They are different even if they have the same number of tooth.
Specifications:
Material: 20CrMo Alloy Steel
Weight: about 7g/set (0.25oz)