I purchased a used Greenspeed GT 20 about 4 years ago after being run down by a car on my 750w Radpower Radcity ebike which I really liked. My Greenspeed came with a Bike shop installed Falco 750w hub motor which seemed like a good system at the time. It has torque and speed sensing which after a lot of reprogramming I got working nicely. Problem now is that company appears to be going belly up. Almost impossible to get even simple control parts. So am looking to go to a middrive system. My Radpower was cadence only and worked fine with no hassle. Both my bikes have 48v batteries 14wh. I am a 75 year old veteran. I average around 3000 miles every summer. My current thinking is my safest bet is the tried and true Bafang BBS02. The new Toseven DM02 might work just fine, but I am leary of getting caught with another orphan. My riding is 95% paved roads, 2 hrs rides for 20-25 miles @ an average 15-18 mph. Our terrain here in upstate NY is 90% flat. I also have interest in the Eggrider controller and anyone's thoughts on going to tubeless tires...Thanks for reading.....