Quality Assurance Statement

Please refer to the following comprehensive guarantee:

1. Power system: battery, motor, controller, instrument, within the scope of warranty, free compensation and free shipping;
2. Structural system: frame, front fork, gear plate, paint finish, to ensure no damage to the factory process and materials;
3. Brake system: brake lever, disc brake disc, brake, within the scope of warranty, free compensation and free shipping;
4. Wheel rim system: rims and tires are guaranteed to be free of damage in terms of factory craftsmanship and materials;
5. Speed system: derailleur, finger shifter, chain, within the scope of warranty, free compensation and free shipping;
6. Shock absorption system: shock absorption front fork, rear spring shock absorption, to ensure no damage to the ex-factory workmanship and materials;
7. Vulnerable parts: such as brake pads, tire etc., which are normal wear parts and are not within the scope of this warranty. Customers need to pay for the purchase and bear the shipping cost.

Exclusions:

These guarantees do not apply to

• Normal wear and tear, failure;
• Damage or malfunction caused by abuse, neglect, improper repair, improper maintenance, alteration, or modification;
• Other improper installation of third-party components, parts, accessories or any unauthorized modification;
• Battery damage caused by power surge, improper use of charger, improper maintenance or other improper use, normal wear and tear or water stains;
• The warranty is only valid in the country/region where the bicycle was purchased. For normal wear and tear, misuse or negligence, improper operation, damage or malfunction caused by various accidents, modification using incompatible parts or accessories, frames, forks or other main components is invalid.

Attention:

For warranty issues, customers need to bear the labor costs and operating costs of installing the parts, and we will bear the related costs and mailing costs of the parts.

Quality Assurance Checklist

AOSTIRMOTOR EBIKE WARRANTY

System	Components	Warranty
Power System	Battery	18 Months
	Motor	12 Months
	Controller	12 Months
	Charger	12 Months
	Display	12 Months
	Turn-Handle	12 Months
	Power Sensor	12 Months
Structure System	Fork	12 Months
	Frame	36 Months
	Handlebar	12 Months
	Middle Axle	12 Months
	Cross-pipe	12 Months
	Chaining + Crank	12 Months
		12 Months
Brake System	Brake	12 Months
	Disc Brake	12 Months
	Brake lever	12 Months
Wheel System	Rims	12 Months
	Fender	6 Months
	Tire	6 Months
Speed System	Gear Shift Lever	12 Months
	Derailleur	12 Months
	Chain	12 Months
	Turn-Handle	12 Months
Shock absorption System	Front suspension	12 Months
	Rear suspension	12 Months
Other Parts	Saddle	6 Months
	Tube Clamp	6 Months
	Light	6 Months
	Pedal	12 Months
	Footrest	12 Months

MAINTENANCE AND REPAIR TIPS

Basic Maintenance

In order to obtain a safe driving experience, please keep the bicycle in the best riding condition and perform regular maintenance.

Regular Self-inspection

• Tighten the front wheel lug nuts, test the tires to rotate and align correctly;
• Tire pressure, always maintain 30 psi;
• Correctly carry out shifting operations;
• Test the brake system-kinks, bends or excessive tension on the brake pipeline will temporarily damage the motor;
• Correct operation of the braking system;
• If you do not use the bicycle for a long time, please ensure that the battery is charged at least once a month to extend its service life.

Maintenance and cleaning skills

• Do not use high-pressure nozzles for cleaning, otherwise water will penetrate and damage the electrical system;
• The dirt on the painted surface should be removed with a non-abrasive cleaner, and then wiped with a dry cloth;
• Lubricate the chain, and always remove all debris, dust and dirt/sand; do not use chemical products that may damage the product on the brakes, brake levers, rims, tires, batteries, controllers, and motors.

SAFETY TIPS

To ensure your safety, please check the following functions before riding:

• Please test the brake system, throttle and power system;
• Please check that the tire pressure should be 30 psi to ensure smooth riding;
• Please check the lug nuts of the front wheels, tighten them before riding to prevent them from falling;
• Please check and ensure that the battery is sufficient to ensure the riding time;
• Please check the adjustment and free operation of the braking system to ensure braking safety;

Please strictly abide by your local traffic rules and legal requirements to ensure safe riding.