Mugen MTX-4 Hardern Aluminum 2nd Gear 23T by 3Racing MTX4-0823  [MTX4-0823]

Hardern 23T 2nd Gear for MTX-4

This aluminium second gear is a direct replacement designed for the Mugen MTX-4 RC buggy drivetrain. Machined from Hardern aluminum, the 23-tooth gear serves as the intermediate gear in the gearbox and is intended for scale RC use only.

Fit and function: this part mates with the MTX-4 gearbox internals and works with the vehicle's spur and pinion arrangement to set final drive ratios. It is not a universal gear and should be used only on compatible MTX-4 transmissions or rebuilds that accept the same gear geometry.

Installation notes: when replacing the second gear inspect the associated bearings and shafts for wear, maintain correct gear mesh and backlash, and re-check pinion alignment after installation. Use the original mounting orientation and tighten fasteners to the manufacturer's recommendations to avoid distortion of the gear or gearbox housing.

Tuning role: swapping to this 23T second gear adjusts overall gear ratio in modest steps and can be used alongside different pinion or spur sizes to fine-tune acceleration versus top speed. Because it is aluminium, expect slightly different wear and heat transfer characteristics compared with stock steel or nylon gears, so verify mesh and temperature under test runs.