[Chadworkz]

Who made that aluminum output gear? It's not an Ultramaxx GenIII gear is it? If not, there is no wonder that steel idler chewed it up...if it is, it can only be run with the other Ultramaxx gears (idler and input).

Anyway, the larger the gear, the less stress it receives due to its larger diameter, so the stock nylon output gear will be fine when run with the hardened-steel idler gear and steel input gear, even on high-powered brushless systems.

The ultimate single-speed E-Maxx transmission is one with all aluminum gears that have been titanium nitride (Ti-Ni) coated! The aluminum is more than strong enough, it just can't be run against other aluminum gears, so coating them in Ti-Ni would be perfect, since Ti-Ni is currently the best wearing surface in RC right now.