... Regenerative braking7,Waterproof0.5kg118*67*38mm6M-3648-1Be suitable for sensor and sensorless motorBe suitable for 36V and 48V battery6250W1, ... 3 speeds8,Waterproof0.5kg118*67*38mm9M-2400-1Be suitable for sensor and sensorless motor24V9350W1,1:1PAS2,Cruise3,Learning itself4,Speed ... .5*81.5*43.5mm12M-2400-1Be suitable for sensor and sensorless motor24V12500W1,1:1PAS2,Cruise3,Learning itself4,Speed ...