... DIY electric bicycle kit 500W 750W with lithium battery ,24V-48V,200w-750w CE,CCC,EN15194,RoHS Let's m DIY electric bicycle kit 500W 750W with ... Frame type)REAR direct motor(135MM+6 CLUSER with DISK BRAKE ADAPTER)250w-500w12"-28"700C18KG LEAD ACID SYSTEM 24V-10AH ... motor,16inch 28inch wheel optional.DISC brake optionalRear wheel:180W-250W for USA&Canada market250W-500W for Australia&New ZealandBattery: ...