I am a 70 year old and have been cycling with a local club since retiring 3 years ago. I was looking for an electric bike mainly for the fun of it. In October 2015 I bought a second hand Kalkhoff Sahel Nuvinci. In January 2016 I saw a Pro Connect 9G on the used bikes page of the 50 Cycles website.
This was the one I really wanted, it was an insurance claim, a new machine at a very reasonable price. As of October 2016, I have done 2600 miles. I ride mostly in Eco mode, using the higher settings only on the stiffest Derbyshire hills or when I want a bit of fun on the way home. My average journey is 48 miles, 3 led's on the battery indicator. The range works out 80 - 85 miles. I discarded the pump, preferring my own. I removed the riser stem and installed a Deda road bike stem to give myself a sportier position. I have replaced the saddle with a Brookes flyer - the one with coil springs and I have fitted pedals with SPD's on one side so I have the option of clipping in or riding in standard shoes. The bell trigger broke on the second ride, I now have a pinger bell.
There was initially some occasional graunching noise coming from the chainwheel area. On investigation, I found the chainwheel had not been deburred after pressing and suspect in certain gears, when the chain was particularly off centre it may have been catching. Having filed away the burrs, it seems better. At 1500 miles, I replaced the brake pads. At 2100 miles I bled the rear brakes as the lever was spongy. 2250 miles, fitted a new chain, I used two Sram 9sp chains as desribed by another reviewer. At 2350 miles I had to tighten the cassette which had become loose.
The bicycle is a stable dependable machine, a delight to ride, even Winnatts Pass is do-able. It's quite a heavy bike compared to a road bike, occasional riding without the motor will keep you fit and you certainly know when you have reached 16.5mph and the motor cuts out as you speed uphill. If you are alway at the back of the ride, struggling to keep up, just get one of these. You will have more fun and your clubmates will thank you. Since I bought the bike, one other club member has bought one and several members have fitted power kits to their bikes. I still ride at the back on club rides, as sweeper, laden with tools and spares.