Details Aluminum Rim: The rim of the electric wheel in this set is made of excellent aluminum, which is waterproof and anti-corrosion. The high-quality rim is more durable and extends its service life. Clear LCD Display: The LCD in this set is very clear. You can see the displayed speed, power, mileage, and other data very clearly. Pedal Assistant Sensor: This product has a sensor for pedal assist, which can sense the pedal cadence and adjust the motor turning rate accordingly. You can get the power assistant without holding the throttle. It is very great for a long-distance journey and can avoid wrist pain from constant pressing. Controller Bag: This set is equipped with a controller bag, which can store the controller. It is not only very convenient to store it but also very good-looking. Application This bike conversion kit fits 26-inch bikes.  Specifications Wheel Material: Aluminum Color: Black Specific Uses For Product: Road Suspension Type: Rear Special Feature: Electric Voltage: 220V Output Voltage: 48V Power: 1500W Rotational Speed: 500rpm Torque: 50N.M Motor Speed: 55km/h Gross Weight: 12.5kg/27.56 lbs Net Weight: 11.5kg/25.35 lbs Package Size: 60*60*23cm/23.62*23.62*9.06" Suitable Wheel Size: 26*1.75-2.125inch Flywheel Diameter: 242mm/9.53" Package Included 1* Motor Wheel 1* 7-speed Flywheel 1* Controller 1* LCD Display 1* Ordinary Throttle 1* Pedal Assistant Sensor 1* Power-off Brake Lever 1* Controller Bag 1* English Manual All Accessories for Assembly Notes This set does not include tires and needs to be purchased by the customer. The suitable tire size is 6*1.75-2.125in.