INJORA Overdrive Underdrive Alloy Steel Helical Gears for 1/18 TRX4M origin-cn Hardware Kit

Hardware Kit

Materrial: Rubber

High Wheel Clearance

and just about anything in its path

INJORA Overdrive Underdrive Alloy Steel Helical Gears for 1/18 TRX4M origin-cn Hardware KitINJORA 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,