Choose the right model and battery capacity according to the usage (commuting, traveling, sports).

All electric bikes enjoy free shipping service. Our shipping service is only available for addresses within the continental United States, which includes 48 states.

Yes, state and local sales taxes (where applicable) will be applied to all orders shipped to the following states:
Alabama, Arizona, Arkansas, California, Colorado, Connecticut, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming.

Check battery charge, brakes and tire condition, and familiarize yourself with the operator interface.

Ride in economy mode, keep tires properly inflated, and avoid rapid acceleration.

Check out your local DMV site and double-check the licensing requirements in your region before you shop for an electric bike.

Under normal usage, your battery can last for 3-4 years.

Avoid over-discharging the battery, store it in a cool and dry place, and charge it regularly.

Cannot start: Check the power switch and battery connection.
Brake noise: Clean the brake disk and adjust the position.
Display is not responding: restart the e-bike and check the connection cable.
Brake Malfunction: Check if the brake cables are loose or damaged. If not, consider replacing the brake caliper or brake lever and cable.
Assist Sensor Malfunction: Step1: Check if the sensor wires are loose or detached. If not, it may indicate a faulty assist sensor. Step2: Disassemble and replace the assist sensor.
Walk Assist Mode Error: Turn off and restart the electric bike (if the issue persists, consider replacing the controller).
Real-Time Mode Error: Turn off and restart the electric bike (if the issue persists, consider replacing the controller).
Low Voltage Error:Step 1: Remove the battery and check if it has sufficient charge. Step 2: Charge the battery. Step 3: If the issue remains after completing the first two steps, it may indicate a faulty motor. Replace the motor.
Motor Malfunction: Check if the motor connection wires are loose, detached, or plugged in incorrectly (if not, it may indicate a faulty motor, consider replacing the motor).
Twist Throttle Malfunction: Check if the connection wires are loose or detached (if not, it may indicate a faulty twist throttle, replace the twist throttle).

Orders will be processed within 48 hours on business days. Once the order has been shipped, a shipping confirmation email will be sent to your email address. We use FedEx for transportation. Please allow 2-7 business days for the shipment to reach your specified location. Pre-order orders will have the estimated shipping date indicated on the product page. Any delivery dates provided by QRONGE are estimated dates.