Arrowmax AM-MRX5-H0759 18T 1st Gear - 7075 Hard Coated  [AM-MRX5-H0759]

Arrowmax AM-MRX5-H0759 1st. Gear 18T (7075 HARD)
Price:
CAD$9.04
Brand:
Arrowmax
Model:
AM-MRX5-H0759
Condition:
Brand New
Available in warehouse
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Durable 18T Pinion for Mugen MRX-5

The Arrowmax AM-MRX5-H0759 18T gear is a solid upgrade for Mugen MRX-5 owners who want a tough, lightweight pinion. Machined from 7075-T6 aluminium, it balances strength and low mass while the hard coat finish improves resistance to wear. Its profile is engineered to mesh cleanly with common spur gears for reliable drivetrain engagement.

Pinion Size Choices

Arrowmax supplies clutch pinions from 16T through 21T so racers can adapt gearing to track layout and driving style. Swapping tooth counts lets you tune acceleration and top speed to suit conditions.

Will this 18T pinion fit models other than the MRX-5?

This pinion is designed for the Mugen MRX-5. It may fit other cars if the shaft diameter and spline pattern match, but some models will require modifications or different mounting hardware.

What material and finish does this gear use?

The part is made from 7075-T6 aluminium and features a hard-coated finish to improve surface hardness and reduce wear under load, while keeping the pinion lightweight.

Any tips for installing the pinion to get correct mesh?

Set the mesh using the standard paper or shim method, check backlash under load, and ensure the set screw or retaining method is secure. Recheck after the first few runs to confirm no loosening.

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