Construction This bicycle gear lever cable set uses a threelayer design for durability, including a doublelayer PVC outer layer and a heatresistant alloy steel beam to ensure longevity and reliability under varying conditions. Smooth Performance With a specially designed smooth PTEE inner tube, this cable minimizes friction and wear, maintaining a consistently smooth shifting experience for bike performance over time. Versatile Compatibility Suitable for road bikes, MTB bikes, and folding bikes, this set is a versatile choice for cyclists who use different types of gear shifters. Comprehensive Package Each package includes essential components such as a 4mm variable speed pipeline, front transformer inner wire, and various conduit and rings, providing everything needed for a complete installation. Usage scenarios Road bikes: worn cables to restore crisp, reliable shifting on everyday rides or racing setups. MTB or folding bikes in varied conditions: upgrade to a robust cable set to maintain smooth shifting in mud, rain, or dust. Mixed bicycle fleets or spare parts: stock a versatile kit that works across road, MTB, and folding bikes for quick maintenance or repairs. Key attributes Function: threelayer construction for durability; smooth inner tube for reduced friction and wear; compatible with multiple shifter types. Compatibility: suitable for road, MTB, and folding bikes; supports various gear shifters. Size and materials: doublelayer PVC outer layer; heatresistant alloy steel beam; PTEE inner tube. Performance: designed for longevity and consistent shifting quality over time.