Key Features Enjoy Riding: With it, you can get rid of bicycles with pedals. Just turn the handlebar gently, and you can control the speed flexibly so that you can experience a more comfortable ride! High-speed Riding: The product is equipped with a 250W motor with 260RPM, which can provide strong power and 28-32km/h speed and give you a comfortable and labor-saving riding experience. Versatile Features: This product has five adjustable gears, and when maintaining a certain speed, press the lower button of the instrument button for 2-3 seconds, it will enter the fixed speed cruise function. It can bring you an unprecedented riding experience. LCD Function: The color LCD meter has a speed display, mileage display, real-time power display pressure, pedal assist level display, and other functions, which are very easy to use. Low Noise: Due to a brushless gearless motor, it produces low noise when riding, and can create a more comfortable riding environment for you. Durable Material: This product is made of high-quality aluminum material, which is strong, durable, and not easy to deform. Application This bicycle motor kit is suitable for 28-inch, 29-inch, and 700C 's Bikes.  Specification Color: Black & Red Material: Aluminum Suspension Type: Rear Motor Type: Brushless Gearless Motor Specific Uses For Product: Road Special Feature: Electric Brake Type: V Brake, Disc Brake Power: 250W Voltage: 36V Speed: 260RPM Torque: 25N.m Speed: 28-32km/h  Suitable Bike: 28-inch, 29-inch, 700C's Bikes Package Size: 65*65*22cm/ 25.59*25.59*8.66in Net Weight: 7kg/ 15.43lbs Gross Weight: 8kg/ 17.64lba Package Included 1* Motor Wheel 1* Intelligent Positive Metaphorical Wave Controller 1* Thumb Turner 1* Electric Brake Handle 1* Boosting System 1* Color LCD Meter 1* Controller Package 1* English Instruction Manual 2* Handle Covers All Needed Accessories Notes 1.Please note that batteries and tires are not included. 2.Please read the instruction carefully before use. 3.Please note that riding speed is related to wheel size, road condition, battery condition, passenger load, wind speed, and other factors. 4.When connecting the controller and cable, make sure that the correct color is connected to the controller. 5.Please note that this set is not waterproof and should not be ridden in rainy weather. 6.We use brake cable with power cable. Our customers can use disc brakes, but not hydraulic brakes. 7.The size of the amplifier determines the size of the battery storage.