JavaScript seems to be disabled in your browser.

You must have JavaScript enabled in your browser to utilize the functionality of this website. Click here for instructions on enabling javascript in your browser.

Injora Overdrive Underdrive Alloy Steel Helical Gears for 1/18 TRX4M (Injora 4M-10-24T | INJ4M-10-24T)

Model: Injora 4M-10-24T
Dist. #: INJ4M-10-24T   SKU: INJ4M-10-24T

Be the first to review this product. (Write Review)

Shipping: In Stock For Shipping
Store Pickup:

South Jordan, UT
Available Now!

Price:  $13.99

This item will earn you 14 reward point(s).
14 points = $0.28 off your next order. Learn More

Updated on May 1, 2024 11:28:31 AM

INJORA Overdrive Underdrive Alloy Steel Helical Gears for 1/18 TRX4M
Suit For: 1/18 RC crawler TRX4M
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

- Injora Overdrive Underdrive Alloy Steel Helical Gears for 1/18 TRX4M

Visual Parts Finder