INJORA Overdrive Underdrive Alloy Steel Helical Gears for 1/18 TRX4M

INJORA Overdrive Underdrive Alloy Steel Helical Gears for 1/18 TRX4M Upgrade
Compatible with:

• 1/18 TRX4M stock axles

• INJORA TRX4M axles

Note:

• Each axle requires 1 set of gears (a ring gear and a pinion gear).

• 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.

• If you have some free play between gears, you can add a shim or 2 between pinion gear and bearing to push pinion teeth deeper into ring gear teeth.

• 22T/10T Underdrive Gears: Decrease speed approx 9%

• 24T/10T Underdrive Gears: Decrease speed approx 16.67%

• 24T/12T Gears: Do no change speed

• 22T/12T Overdrive Gears: Increase speed approx 9%

Features:

• 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 then stock gears

• CNC machined 20CrMo Alloy Steel Gears

Specifications:

• Material: 20CrMo Alloy Steel

• Weight: about 7g/set