MMwith 540c xl

[rschoi_75]

Hi guys,
New to the forums here... so go easy on this newb...
I've been in r/c for quite a while, but this is my first attempt at a E-revo conversion so I need some help....

what speeds should I expect with a 9XL and MM combo on a 4s 6000mah lipo (Two 2s in series), 72T E-maxx spur; I'm using an e-maxx tranny and motor mounts. Not sure on the gearing yet. I plan to buy pinions based off of the advice here.

Any help is great. I just need to be pointed in the right direction. Good forums here....