warranty

This Limited Warranty applies to products purchased directly from duodianbike.com, unless otherwise stated on the product page or in your order confirmation.

Warranty highlight: DUODIAN products are marketed with a 2-year warranty (as displayed on-site). Coverage details below explain what’s included and what’s excluded.

Warranty Period

  • Standard: Up to 2 years from the original delivery date for eligible products.
  • Different parts may have different coverage periods depending on product type and usage.
  • The warranty is for the original purchaser and is not transferable unless required by law.

What’s Covered (Examples)

  • Manufacturing defects in the frame, motor, controller, display, wiring harness, and other electronic components.
  • Battery defects related to materials/workmanship (capacity fade over time is normal; see exclusions).
  • Defects in parts included in the original box at time of delivery.

What’s Not Covered

  • Normal wear and tear: tires, tubes, brake pads, grips, cosmetic scratches, etc.
  • Damage caused by accidents, misuse, overloading, stunts, racing, water immersion, or negligence.
  • Unauthorized modifications or use of non‑DUODIAN chargers/batteries/parts.
  • Routine maintenance and adjustments.
  • Consumables and accessories unless defective on arrival.

How to Make a Warranty Claim

  1. Email support@duodianbike.com with your order number.
  2. Provide the product model, serial number (if available), and a detailed description of the issue.
  3. Attach photos/videos showing the problem and the overall condition of the product.
  4. We may provide troubleshooting steps, replacement parts, repair options, or a return authorization depending on the case.

Parts Replacement & Repairs

  • If a covered defect is confirmed, we may ship replacement parts or arrange repair depending on the situation.
  • If return shipping is required for warranty service, instructions will be provided after claim approval.
  • In some cases, we may request that faulty parts be returned for inspection.

Safety & Proper Use

Always follow your user manual and safety instructions. For kids products, adult supervision is required. Wear proper protective gear (especially a helmet) and follow local laws.