Specification Color: Black, Silver Material: Aluminium Alloy Shape: Round Style: Modern Meter Type: Color Screen LCD Power Type: Lead-acid or Lithium Battery (Not Included) Installation Position: Front Bike Type: Electric Bike Motor Type: Brushless and Gear Motor Braking Method: Disc Type/V-type Brake Corresponding Controller: 36V 500W FOC Sine Wave Intelligent Controller Instrument Display: Real-time Speed, Maximum Speed, Average Speed, Total Mileage, Single Mileage, Battery Power Display, Assist Gear/Speed Grading, Cruise Function, Error Code Display Voltage: 36V Power: 500W Rated Speed: 300rpm Rated Torque: 55nm Efficiency:? 82% Motor Wheel Speed: Max 35-40km/h Net Weight: 8kg/17lbs Gross Weight: 9kg/19lbs Package Size: 606022cm/23238inch. 27.5 36V Electric Bike Conversion Hub Motor Front Drive Motor Wheel 500W. Stepping on the pedal for a long time is tiring. Maybe you need an easy way to ride. This electric bike conversion kit is made of high-quality aluminum alloy, which is strong and durable. It can convert ordinary bicycles into electric bicycles, so that you can feel the speed of the wind and climb hills without difficulty, giving you a good riding experience. Fast Speed: The speed can be up to 40km/h, which is very fast and can give you a good riding experience. LCD Display: The LCD meter with a color screen can display the real-time speed, maximum speed, average speed, total mileage, single mileage, battery power, assist gear/speed grading, cruise control, and error code, allowing you to grasp the usage status of the product. Meanwhile, the backlight enables you to see the screen clearly in a dim environment. Excellent Performance: The high efficiency (82%) can save you a lot of electricity. Moreover, the brushless gear motor produces low noise when used, which can create a quiet environment for you. Safe and Reliable: The powerful FOC sine wave controller is conducive to ensuring the smooth operation of other parts, making your entire process safer and easier. Besides, the power-off brake handle can cut off the motor power in case of emergency braking so that the bike can stop in time and reduce potential safety hazards. Premium Material: Made of high-quality aluminum alloy, it can resist wear, corrosion, and deformation. Labor-saving: You don’t have to pedal your bike laboriously anymore with this product and only need to gently rotate the turner to control the speed flexibly, which is very labor-saving and convenient. The adjustable five gears can bring you an unprecedented riding experience. Easy to Install: The simple structure and complete accessories allow you to install it in a few simple steps, which is very simple and convenient. Pedal Assistant Sensor: It senses the rhythm of the pedal and adjusts the speed of the motor accordingly. This helps on long trips and avoids wrist pain caused by constant pressure. Controller Bag : This can be convenient to store the controller. It is also very good-looking and stylish. Meter Bracket: You can put the LCD meter on the bracket for easy storage and viewing of the display on the meter. It fits for the handle with a diameter of 0.87inch. It is suitable for retrofitting the front wheel of a two-wheeled bike. It is suitable for bikes with 27.5inch wheels. Meter Type: Color Screen LCD. Power Type: Lead-acid or Lithium Battery (Not Included). Bike Type: Electric Bike. Motor Type: Brushless and Gear Motor. Braking Method: Disc Type/V-type Brake. Corresponding Controller: 36V 500W FOC Sine Wave Intelligent Controller. Instrument Display: Real-time Speed, Maximum Speed, Average Speed, Total Mileage, Single Mileage, Battery Power Display, Assist Gear/Speed Grading, Cruise Function, Error Code Display. Motor Wheel Speed: Max 35-40km/h. Controller Size: 21211555mm/8.34.52inch. LCD Meter Size: 6896mm/2.63.7inch. Wheel Diameter: 27.5inch/69.8cm. Suitable Handle Diameter: 22.2mm/0.87in. How to Measure a Bicycle Wheel Size. Method 1: If your tire is mounted, you can find the wheel size on the bicycle’s tire. Method 2: Measure the distance in inches from the ground beneath the tire to the center point of the wheel. This measurement is the wheel’s radius or half of its diameter. Multiply the length by two to calculate the tire’s diameter. Most adult bicycle wheels are between 26 and 29 inches in diameter. 1 Front Drive Motor Wheel. 1 Color Screen LCD Meter&Bracket. 1 Set Pedal Assistant Sensors. Other Accessories for Assembly. The speed is related to wheel size, road condition, battery condition, guest load, wind Speed, and other factors. It is suitable for the front wheel of a two-wheeled bike or tricycle with the front fork claw hook inside distance of 3.9inch. Please prepare lead-acid battery or lithium battery with a power of 500W in advance. Please note that the battery and tire are not included in the package. Please make sure a solid connection between the motor and the controller. Please make sure that the inner core of each plug is not damaged, broken, or bent. If your kit has been used for a while, and then suddenly stops working, first check whether the battery has power, then check whether the wiring of the controller is loose, disconnected, or melted, and finally check whether the instrument works normally and whether there is an error code display. You need to connect the machine correctly and firmly during installation so that the product can work properly. If there is a mistake during the installation process, the product will not work properly. Please read the manual completely before installation and use, and pay particular attention to the safety instructions included. Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before ordering. France, Germany, spain, Italy. Feedback is very important to us. It is impossible to address issues if we do not know about them! Please keep the original box or packaging within 15days since item received. Your satisfaction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it’s non-workdays, please kindly be patient and wait till Monday.