5S A123 FLM Emaxx

[sleebus.jones]

Well with my gearing/motor top speed is 25 mph. Looks faster than that, but that's all she's got. I'm using that low kv motor because I'm testing it out for another guy, otherwise I'd be using my 10XL (1668kv). That would put the speed around 33 mph. However, I'm not sure if I want to push the MM that hard, although I've heard other folks have success with it.

If you are going to go MMM, and I see you have a FLM chassis, I'd go 6S. A 6S flat pack fits right across the back there with no problem. Higher voltage is always better, and just gear down to drop the speed. Everything will run cooler too. I wouldn't even think of 5S given your setup. :)