UK MTB Electric Bike Conversion Kit 36V 48V 250w-1500w Motor 26 27.5 28 29 700C. 1pcs controller with bag. 48V 1500W Brushless Non-gear Hub Motor 540RPM 45NM. 48V 1000W Brushless Non-gear Hub Motor 470RPM 35NM. 48V 1500W about 50-60km/h. 48V 1000W about 45-55km/h. (different wheel size, road&weather condition and rider’s weight will have different speed). Front dropout 100mm, Rear dropout 135mm-142mm. Double-wall alilumium alloy rim inner rim with 25mm x25mm depth. Rim size: 26″/27.5″/28″/29″/700c. Compitable Brake System: disc brake. It also can use on V-brake, but you may need change the brake system. Shell’s Material: ABS. LCD Screen: high hardness arcylic(hardness is equal to tempered glass). Support Voltage: DC 36V or 48V. Handlebar for Holding:Ø 22.2/25.4/31.8 mm. Speed indicator, PAS grades indicator, Error Code indicator, Mileage, Single. Mileage, Battery capacity indicator, Headlight indicator. 2> Control and Settings. Light Control, 6km/h Inching Control, Wheel Diameter Setting, Top Speed. Setting, Idleness Time Setting for Auto-Hibernation, Backlight. Brightness Setting, Voltage Level Setting. EBike Controller for SW900 Display. CSC 6 mosfet controller. Fit for: 36V 250W/350W/500W motor wheel , SW900 Display. Rated current: 15A, Max current: 30±1A. CSC 12 mosfet controller. Fit for: 48V 1000W motor wheel, SW900 Display. Rated current: 26A, Max current: 50±1A. CSC 15 mosfet controller. Fit for: 48V 1500W motor wheel , SW900 Display. Rated current: 35A, Max current: 60±1A. Size: 118.282.3341mm. PAS sensor- 8 Magnet. Speed Throttle: twist throttle default.