I build a Hyper 7 with Mike's motor mount, Neu 1515 1.5D, 5S NeuEnergy,
20 tooth pinion, custom made batts holder and Monster Esc. That buggy runs
like a speed demon.

Now I made a mount for my OCM Evo roller
and putting the same combo on it. But the Hyper 7 is one tough buggy,
I haven't broken any part of it yet.