I am running a Slash and already started seeing wear on the Titan so I replaced it with a Hobby Wing EZRun 17.5 setup but having a hard time with gearing.

I started with 27/83 and it was OK, a little slower than stock and punch seemed a little low.

Then I went to 28/76 like a buddy with the same motor and running that gearing and mine got VERY hot. I think I had a gear mesh issue. Need to experiment with ESC settings and gearing some more.

I would like it to be just a tad more punch than stock and the same top end or slightly more and I think it will.

I may try 28/83 with some different ESC timing and punch settings.