I'm working on upgrading an older Tao Tao moped style ebike. Currently only goes 35km/h. I've got my eye on a much faster 16inch hub motor but its a disk brake only motor. Haven't found a drum brake motor that goes as fast as I'd like. I found an adapter that would allow me to easily add disk brakes to the scooter (see below) but it's only for 220mm rotors. Any rotors of this size are only 4 or 3 bolt, but the hub motor needs a 6 bolt rotor. Largest common 6 bolt rotors are only 200 or 203mm. I'm kinda stumped here anyone do a conversion like this?
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