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11. For non-professionals, bike master assembly debugging is available.

2. Due to different production batches, some parts may be replaced. However, we guarantee that any alternatives will be of the same or higher quality, ensuring a more convenient product.

3. If you encounter any issues during the installation process, please contact our customer service for an installation video; we are eager to assist you.

4. All product images are as shown in the photos. Differences in display colors may occur, and inquiries regarding color discrepancies fall outside our return policy.

5. Dimensions are manually measured, so a 1-3cm margin of error is normal.