Mugen MRX-5 Pinion Gear 16T Lightweight 7075-T6 - Arrowmax AM-MRX5-H0757  [AM-MRX5-H0757]

16T replacement pinion for MRX-5

This 16-tooth pinion is a direct aftermarket replacement made for the Mugen MRX-5 family. Machined from 7075-T6 aluminium with a hard-coated finish, it reduces rotating mass while improving surface durability for clutch/pinion applications in 1/8 scale competition and club use.

Installation notes: slide the gear onto the clutch pinion shaft and follow your normal chassis service steps, set gear mesh to the maker's recommended clearance and confirm the motor and spur spin freely before running. Pay attention to clutch preload settings and re-check engagement after any gear swap to prevent premature wear to the spur or clutch parts.

Tuning notes: swapping pinion tooth counts changes final drive and throttle/braking feel on nitro or electric clutch systems; choosing a 16T gives a specific ratio that can help sharpen acceleration when paired with the MRX-5 spur options.