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

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

$12.99 USD
$12.99 USD
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Overdrive/Underdrive
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
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