GUNAI 750W Elektrofahrradmotor, 27,5-Zoll-Offroad-Reifen für Erwachsene, Mountainbike mit 48V 10Ah Akku, Schutzblech, EU-Lager

GN27 Mountainbike Specifications: * Model: 48V Electric Bicycle 750W * Motor: Brushless * Motor power: 750W * Frame Material: Aluminum alloy * Seatpost adjust height: 80-100cm * Torque: up to 50N.M * Product Size: 178*63*115CM * Battery: 48V 10AH Li-ion battery * Mileage of Pure Electric: 40KM * Mileage of Assistance: 60-70KM * Brakes: Dual Disc brake * Tires: 27.5X1.95 inch * Charging time: 4-6H * Maximum speed: 35KM/H * Gear: 7 * Maximum load: 120KG * Bike fit: height 160-210cm * Mudguard: Sports plastic mudguard Key Features: Three Riding Modes 7-Shift smart control LED Headlight Equipped with mudguards Dual Disc brake Pedal-assisted up to 60-70km Multifunction LED display high performance shock absorber Rubber tires Packing list: a pcs 750W electric bike built in 48V 10AH li-ion battery Common bicycle problems and solutions Q: Error code appears on the meter A: Check the manual to see what kind of fault the error code belongs to, follow the instructions to handle it, and if it still doesn't work, provide error code pictures/videos. Q: Charger doesn't work A: First check whether the charger is green or red to green when charging; if the green light is always on, it may be a problem with the charger/charging port/battery, and if the red to green light indicates that the charger is normal, it may be a meter problem. Q: The meter can't be turned on A: Check whether the meter line/controller line is plugged in tightly, and re-plug it; if it doesn't work, it may be a problem with the meter/main line/controller Q: Pedal assist doesn't work A: Check whether the meter parameters are correct, confirm whether the throttle can work, and whether the sensor line is damaged or loose; if all are correct, replace the sensor Q: Rear wheel shakes A: Check whether the spokes are loose and whether they are installed in place; you can tighten the spokes and reinstall the rear wheel. Q: Motor does not work/has strong noise A: Check if the controller is loose, re-plug the motor cable of the rear wheel; provide a video of the noise for the technician to determine what the sound is. Q: Battery does not work/battery life is insufficient A: Measure the battery voltage after fully charging the battery (provide pictures). If the voltage is abnormal, there may be a problem with the battery/battery cover/circuit board. For battery life issues, customers test the battery life under full charge and provide the VOL when fully charged, the ODO (total mileage) when fully charged, the VOL when the battery is exhausted, and the ODO (total mileage) when the battery is exhausted. Q: Pedals cannot be installed A: Check if the left and right pedals are installed/twisted in reverse order. If so, check if the crank/pedal threads are slipped. If slipped, the crank pedals need to be replaced. Q: Brakes don’t work/are not sensitive/leak oil A: Adjust the brakes first/check if the brake pads are worn, if there is oil on the brake pads or discs, insufficient friction/is the brake line loose/leak oil, then you need to replace the brakes directly Q: There is an abnormal sound from the brakes A: It may be the sound of wiping the disc. Ask the customer to check if the disc is deformed. If it is not deformed, adjusting it can solve the problem. The disc is stuck in the middle of the brake (with a gap), not too close to the left or right side of the brake Q: The riser is loose and has a gap A: Check if the headset is aligned and installed, and adjust the headset; if it doesn’t work, replace a headset Common problems and solutions for scooters Q: The meter cannot be turned on A: First check if the line on the back of the meter is plugged in tightly, and re-plug it; if the meter still cannot be turned on after the operation, send a replacement to the customer Instrument/Check if the instrument fuse is burnt out/Check if the instrument or switch plug pin is broken Q: Motor does not work A: If it is a dual motor, swap the front and rear controllers to see if the non-working motor will work normally; Q: Abnormal noise from the motor A: Check if there is an error code on the screen, and provide a video for the technician to determine if the abnormal noise is normal Q: Headlight flickers or does not work A: Check if the line is loose, and re-plug the interface; the step-down board of the light strip may be burned/check if the light switch is available, if not, replace the switch Q: Steering/taillight does not work A: Re-plug the line, if it does not work, re-issue the accessories Q: Brake failure A: Check if the instrument has an error prompt, if so, the brake power-off switch may be faulty, and the power-off switch needs to be replaced; or check if the brake pads are worn out and the brake line is loose Q: Error code appears on the instrument A: Check the corresponding manual to see what kind of fault the error code belongs to, and operate according to the instructions. If it still does not work, provide error code pictures/videos. Q: The charger does not work A: First check whether the charger is green or red-to-green when charging; if the green light is always on, it may be a problem with the charger/charging port/battery, and if the red-to-green light is normal, it may be a problem with the instrument.