MMp and sidewinder speed controls work with lipo, but for how long??? I have seen too many of these go up in smoke for me to recommend them to anyone! In all my years rc racing, I only burnt one lrp ai super reverse(no turn limit) in three minutes , running a 10t motor in a f1 car, and lrp sent me a new esc back in a month! One thing I learned is that you better get a proven durable, reliable, and upgradable system for a little more money up front, even if you are only bashing now...Cheap systems burning up will eventually cost you more down the line, and won't perform at all against your bashing competitors, unless you want to keep losing everytime....