First, during the warranty period, the following does not belong to the scope of free service, please note:

Vehicle mileage records accumulated more than 2000km;

Instructions failure to require the installation or use of any damage caused;Serial number has been deleted or altered;

Product warranty card serial number bar code or type does not match the product itself;

Products through my company official authorized personnel disassembly or maintenance

It does not affect product functionality natural wear and tear (including housings, handles, gear box, tire wear, etc.);

Unexpected factors or improper use may damage the product, such as mechanical damage, break, bump, severe oxidation products and so on;

Overload, riding over obstacles (including, but not limited to, down the stairs, falling, etc.), and other damage caused by extreme sports;

Customer damage repair on the way back because the dismantling, transport, handling the product;

Fire, soaking liquid, frozen, any damage earthquakes and other non-normal storage conditions or force majeure;

Loss of packaging materials and various kinds of technical information and other vulnerable annexes;

Failure or damage to other non-product itself design, technology, manufacturing, quality and other problems caused by. 

Second, beyond the warranty period defective product, we provide a paid service.