I put the 30k kit on my tandem bike that my girlfriend and I ride. We ride it a lot, and the kit has made our rides much more enjoyable. Its so nice to hit the button when leaving a stop sign to get going. Its a 7 speed and I’m already thinking about putting higher gearing on it to even go faster !!
We live in California in the central San Joaquin valley, and it gets very hot in the summer time. Its nice to arrive at our destination not all hot and sweaty!!