Actually I think by changing the wheel diameter in the controller setup you are throwing off the speedometer calibration . To check that get a GPS speedo app on you cell phone and test the speeds.At 75 lbs it's heavy but I get about 35-40 miles on pedal assist and about 20-25 all motor. Cost $1,800. I can get 30mph if I set it to a smaller tire in the controller but when set at 26inch tire cuts out at 25mph
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