I live in a pretty rugged mountain area of Idaho and have built a 750 watt and a 1000 watt Bafang kit. Neither of them had the power to effectively pull some of the very steep fire roads. I have also purchased and sold a few commercial emtbs. I have been looking around at other bikes and companies and found a company called CYC that produces an ebike kit that can get up to 5000 watts peak if configured correctly. Has anyone actually tried one of these monsters?