The motor kits do not include a battery. Eco-friendly and high-performance, the Bafang Mid Motor Kit is designed for electric bikes, featuring a Bafang Mid Drive Motor with a nominal voltage of 48V and a rated power of 1000W. Position: Mid Motor Construction: Geared Motor Nominal Voltage: 48V Rated Power: 1000W RPM: 160±10 Max Torque: 160 N. M Efficiency: 85% PAS SENSOR: Speed sensor Shaft Standard: JIS. Weight: 5.6 kg. E-Brake: Yes Gearsensor Function: Yes Light Drive Capacity (DCV/W): 6/3 (max). Cadence (Pulses/Cycle): N/A Reduction Ratio: 1:21.9 Magnet Poles: 8 Noise. IP-Code: IP 65 Certifications: CE / UL / ROHS EN 14764. 1 48V1000W Motor (Optional) 1 Display (Optional, if you choose no display, the parcel will not include) 1 Thumb throttle 1 Cranks 1 46T-2 Chainring 1 Speed sensor 1 Brake levers or brake sensors 1 1T4 cable 1 Screw and Nut Accessories. 1 Headlight 1 Wrench 1 36V250W sticker 1 Crank Puller 1 Bottom Bracket Remover 1 User Manual Note: The motor is designed to fit bottom brackets with an inner diameter of 34-36mm. Please note that the 68mm motor kit does not include screws for 73mm bottom bracket. Choosing Brake Levers or Sensors. The kit is compatible with or without brake sensors. For standard cable actuated brakes, select brake levers. For adapting existing brakes, especially hydraulic ones, magnet sensors are available. Additional costs may apply for remote area deliveries. Local return addresses will be provided for convenience. Your satisfaction is our priority. We appreciate your 5-star feedback and are here to assist you with any issues.