Smooth and Durable Design: The surface of these bike line tubes is smooth and round, ensuring they are not easy to bend.

Variable Speed Functionality:

• Equipped with a 4mm variable speed wire tube structure (SP vertical wire structure) to facilitate speed adjustment.
• Features a 5mm brake wire tube structure (2P spinning wire structure) for effective mountain, road, or folding bicycle braking.

Colorful and Personalized: These tubes come with a colored outer layer, adding a touch of vibrancy and personality to your bike.

Durable Construction: Crafted from high carbon steel and PVC, ensuring reliability and longevity.

Dimensions: Approximately 3m in length, providing versatility for various bike types.