1 Front or Rear motor wheel. 1 Pair Power cut-off Brake lever. 1 8 Magnet Pedal Assistant Sensor. 1 160mm disc brake. 1 7 speed thread freewheel. 1 Outside tire+ inner tire. 1 48V 18A Battery (if you order no battery option, it does not include battery). 48V 1000W about 45-55km/h. 48V 1500W about 50-60km/h. Rim: Double-wall Aluminium Alloy Rim /25mm inner width. Hub Motor: 48V Brushless Non-gear Hub Motor. Rear wheel Bottom bracket: 135mm-142mm. Nominal Capacity: 18Ah Composed Type: 13Series 4Paralles 13S4P Cells: 21700 4500mah Power Cells BMS: 40 Amp continuous 100±10Amp maximum Fit Motor Power : 48V 500W 750W 1000W 1500W Charge Current: 3A Discharge Temperature: -20 to 65°C Charge Temperature: 0 to 45°C. Charge Cut-off Voltage: 54.6V. Discharge Cut-off Voltage: 36.4-39V. Battery Dimension: 36590110mm (LengthWidthHeight). Cycle life:? 80% capacity after 800 cycles. Charge Time: 8-9 Hours. This is Rear Moter wheel, it suitable the frame of your bike with dropout in 135mm-142mm, please measure your frame as picture below. CSC 12 mosfet controller Fit for: 48V 1000W motor wheel, SW900 Display Rated current: 22A, Max current: 44±1A Size: 14983.342mm CSC 15 mosfet controller Fit for: 48V 1500W motor wheel , SW900 Display Rated current: 35A, Max current: 70±1A Size: 118.282.3341mm. Controller Bag or box. 2.1 LCD Display. Speed indicator, PAS grades indicator, Battery indicator, Error indicator, Single Trip Distance and. Total Distance, Headlight indicator. 2.2 Parameters Setting. Power on/off, Headlight on/off, 6KM/H Cruise control, Wheel size, Max speed setting. Auto stand-by and sleep mode setting, Background luminance setting, Working voltage setting. PAS sensor- 8 Magnet.