I got to take a ride on the bike yesterday, this is the coolest thing I have ever ridden. I was able to get the bike up to 20mph in the highest helping mode. I never tried the go only mode, I almost think I would take it away from the one that I get, I am for sure going to get one. I am going to sell some of my petrol bikes to get up the money for it. The bike is not heavy, I have tried another electric bikes, they were horrible and I would never have considered one. This bike is nearly silent, as you start to pedal it then starts helping you push, if you stop pushing it quits helping and you coast to a stop. For me at my age I feel like I am a kid again I could go as far as I want. It looks like it is of high quality all the fit and finish is first rate, the new ones will be even better. The bike will only go 20 but it is as fast as I think you need to go. My petrol bikes will go faster but I never sustain that speed, that is just to fast for a bicycle. If you are strong you can go faster if you like but you will have to contribute the extra power to achieve that. I have always liked the noise I can make with a well tuned engine, but I am getting over that now, and I seem to be more attracted to just a quiet as I can be. I have some trails I want to try in Utah, and with the electric legs helping me I can go anywhere. Ill keep you posted. Have fun, Dave