MTX4 54T Delrin Spur Gear 0.8 Pitch MTX4-0854/V2 by 3Racing  [MTX4-0854/V2]

Replacement Spur for MTX4 Gearbox

The MTX4-0854/V2 is a 54-tooth Delrin spur gear produced to replace the original spur in Mugen Seiki MTX4 gearboxes. It conforms to the 0.8 pitch standard used on MTX4 setups and is supplied as Version 2 for spare or upgrade use.

Fitment and role: intended as a direct swap into MTX4 gear trains, the Delrin spur aims to reduce meshing drag where compatible. Confirm your pinion pitch and gearbox spacing on the specific MTX4 variant to ensure correct engagement prior to fitting.

Installation notes: remove the gearbox cover, preserve any original shims and spacers, fit the 54T Delrin spur in the same location, and manually rotate the drivetrain to verify mesh and axial alignment before final assembly. Keep the original pinion and confirm backlash across full travel.

Tuning considerations: Delrin typically reduces friction compared with some other plastics and may subtly change drivetrain feel. After swapping, check slipper or clutch settings and apply minimal recommended lubrication to keep wear predictable and performance consistent.