... ,200w-750w CE,CCC,EN15194,RoHS Let's m DIY electric bicycle kit 500W 750W with lithium battery24V-48V,200w-750wCE,CCC,EN15194 ... .DISC brake optionalRear wheel:180W-250W for USA&Canada market250W-500W for Australia&New ZealandBattery:24V/10Ah polymer li-ionAll battery ... )Max speed:25km/h(Eur) 32km/h(USA&Canda) DIY electric bicycle kit 500W 750W with lithium battery