Minor edit - not necessarily the highest mileage users, but rather the ones to burns through the most gear. People here have mentioned having to swap out chains at 500 miles on their ebbs. I get between 2000 and 2500 on my pedal bikes. I'm assuming they blow through cassettes and chainrings at a comparable rate. One of my race buddies now has over 18k miles on an XX1 cassette that he got on a Blur 3. The solution I'm hoping for is that the e-bikes, other than low-power SL models, will start getting ebike-specific parts, and pedal bikes can...