Injora 4M-34-22T - 22T/10T Underdrive 9% Alloy Steel Helical Gears TRX-4MINJORA 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,

This is the ProTek R/C O

Overheating an electric motor can cause the internal magnets to lose their strength

Application Guidelines: 1:18 scale RC hobby vehicles weighing up to 2

Color: Chrome Plated

Overdrive the front(or underdrive the rear) will pull you faster in the front

or run underwater for a while

or stock class racers that want optimum voltage for the entire run

meaning the cells maintain higher voltage throughout the discharge cycle with no significant drop off

2-channel radio

Precision machined to exacting specifications

Nitro Applications

and ESC temperature