The stock tire on my e-revo is in the garbage I've put half offset Ofna wheel with proline bowties MTR.
I've a Neu 1515 2.5d/f with 6s, gear 24/68 and i'am about in the 40/42mph range.
If i put y badlands on it, i switch for a 22T pinion to campansate for the extra .15" diameter and weight.