I put a mid-drive bafang 750w into my Carrera subway & that has 2 x 9 gearing. I had to remove the front derailleur & crank, so that's left me with a nine speed cassette. I've not experienced any major problems, bar a tiny bit more wear on the chain which I clean religiously after ever ride along with the cassetteI'm curious if anyone has installed a Mid-Drive motor on a LandRider Auto-Shift bike?
Sram already has the EX-1 chain that is made for ebikes. Has solid rollers. Mid-drives are the way to go if you can afford it.Youtube videos show people regularly commuting long distances on mid-drive bikes. Occasionally I hear about someone breaking a chain, but not often. Chains are cheap and easy to install. But assuming the chain really is the weak link (pun intended) to mid-drive ebikes, it's a safe bet manufacturers will come out with better built chains (if they haven't already).