Just finished my first build BBS02, 48volts. Everything working but speed seems to be restricted. I reach around 26 mph with throttle only. I tried no-load and only 28.5 mph. P850c shows speed limit at 99. Do I need to configure something via PC?
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thats relatively fast. sounds like its working just fine. likely your gear ratio setup doesnt allow you to top past 30. what is your cassette and front ring tooth range? also you can learn to reprogram the controller here https://edrivenet.com/bafang-programming/