Please check your rear fork width (135 - 142mm) to make the motor hub can be fitted into it. Battery and charger are not included in this listing. Our 750W system requires a 48 Volt electrokinetic cell battery with a maximum continuous discharge current of not less than 22A and a nominal capacity of not less than 15Ah. Professional installation skills are needed. Please notice that basic tools will be required when installing this DIY Kit. Otherwise, please seek a local mechanic for installation. The AU regulations dictate that a kit must not exceed the rated power of 250W to be road-legal. 750W Motor is not path legal, this product is recommended for off-road or private property use only. Please noted that the rear motor hub will only suit thread-on freewheel which is up to 7 Speeds, the freewheel is included. Speed limit and riding ranges depend on the rider's weight, road, and weather conditions.