Mugen MTX-5 2nd Gear 20T Upgrade 7075 Aluminium - AM-MTX-T2718 by Arrowmax  [AM-MTX-T2718]

MTX-5 20T Replacement Second Gear

The Arrowmax AM-MTX-T2718 is a hardened 20-tooth second gear designed for Mugen MTX-5 drivetrains, supplied as a 7075 aluminium aftermarket option. It acts as the gearbox intermediate, transferring torque reliably from pinion to spur while resisting wear along the racing line.

Fit the gear by confirming spur and pinion mesh, inspecting bearing play, and checking axial alignment before full-throttle running. The hard 7075 material gives stable dimensions under load which helps maintain predictable engagement throughout setup and use.

Include this gear when tuning: verify backlash, balance load across bearings, and monitor tooth condition after initial runs. Intended specifically for RC-scale drivetrain installations on Mugen MTX-5 compatible cars.