Key Features High-quality Materials: This product is made of high-quality aluminum, iron, copper, and magnet steel, which is strong, durable, wear-resistant, and not easy to deform. Fast Speed: The brushless gear series hub motor makes this product have a maximum no-load speed of 28km/h and a maximum load speed of 24km/h, allowing you to enjoy the exciting experience of riding at a high speed. LCD Function: The LCD meter has the function of fault display, speed display, mileage display, five-speed booster speed control, and battery power display, so you can grasp the status of the bike in time. Adjustable Speed: It has five gears to adjust the speed, which can bring you an unprecedented riding experience. Excellent Performance: It has a high efficiency of more than 82%, which 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. Application It is suitable for retrofitting the front wheel of a two-wheeled snow bike. It is suitable for bikes with 20-inch tires. Specification Color: Black, Silver Material: Aluminum, Iron, Copper, Magnet Steel Voltage: 36V Power: 350W Meter Type: LCD Power Type: Lead-acid or Lithium Battery (Not Included) Installation Position: Front Motor Type: Brushless Gear Series Hub Motor Motor Net Weight: 3-3.5kg/6.6-7.7lbs Motor Diameter: 143mm/5.63inch Motor Shaft Diameter: M14 Motor Shaft Length: 153mm/6.02inch Motor Cable Length: 100cm/39.37inch Number of Sensors: 3 Rated Speed: 300rpm Rated Torque: 30nm Flat Fork Width Requirement: Min. 100-110mm/3.94-4.33inch Brake: Disc Brake Rotor Type Can be Installed 6 Screws Braking Method: Disc Type Corresponding Controller: 36V 350w Controller Available Wheel Size: 20inch Instrument Function: Fault Display, Speed Display, Mileage Display, Five-speed Booster Speed Control, and Battery Power Display Efficiency: ≥82% Motor Wheel No-load Speed: Max 28km/h Motor Wheel Load Speed: Max 24km/h Net Weight: 5kg/11lbs Gross Weight: 7kg/15lbs Package Size: 50*50*23cm/19*19*9inch Wheel Diameter: 42cm/16.54inch Wheel Width: 17cm/6.69inch Package Included 1* Front Motor Wheel 1* Controller 2* Turners 1* Brake Handle 1* Controller Bag 1 Set* Pedal Assistant Sensors 1* Headlight and Horn Switch 1* LCD Meter 1* English Manual Other Accessories for Assembly Notes 1. This set does not include tires and needs to be purchased by the customer. The suitable tire size is 20*1.75-2.125inch. 2. The speed is related to wheel size, road condition, battery condition, guest load, wind Speed, and other factors. 3. It is suitable for the front wheel of a two-wheeled bike. It cannot be used for three-wheelers or multi-wheelers. 4. Please prepare a lead-acid battery or lithium battery of corresponding voltage in advance. 5. Please make sure a solid connection between the motor and the controller. 6. If your kit has been in use for a while and then suddenly stops working. It could be that your motor plug is soaked in water. Please unplug it and let it dry. Then put it back in place and it will work fine. 8. 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. After the installation is completed, you can check whether the error code is displayed on the LCD screen.