Features: 48V 1000W super power brushless gearless hub motor. Nylon tire & alloy rim & stainless steel spoke. Rare-earth metal magnet are used in the motor to efficiently produce large power. Aluminum alloy powerful controller guarantee big current supply. Twist throttle has battery level display and power-cut off button. Brake Levers cut off the power supply to the motor safely. Descriptions: Crank speed sensor for pedal assist. Aluminum alloy powerful controller. This Electric Bicycle kit includes everything needed(except battery) to convert your standard bike into a top-of-the-line performance electric bike, which delivers unequaled performance and reliability. Specifications: Wheel type: Front Wheel Motor: Brushless Gearless Tire: Nylon Rim: Alloy double wall Power: 1000W / 48V Torque: 45 N.M Spokes: Steel, 12G*2.6mm Wheel Size: 26 Max load capacity: 200kg (440lbs) Wheel Axle: 175 x Φ10mm Matching battery: 48v17ah/ 48v20ah lithium battery or lead acid battery Package Included: 1 x Brushless Gearless Motor Front Wheel 1 x Intelligent Motor Controller 1 x Pedal Assist Crank Sensor 1 x Cable Ties & Plastic Coil 1 x Pair of Handle Bars (included Twist Throttle) 1 x Controller Bag 1 x Pair of Brake Handles 1 x Manual Notes: Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.