This is a bulk box of 50m Giant 4mm Diameter Derailleur Housing. If you work on bikes and need access to derailleur cable housing at specific lengths, this bulk box is the option you need in your shop or home work space.
- Compressionless shell for precise shifting.
- Dual outer layers increase weather resistance and durability.
- Super lightweight, 4mm O.D.
- Compatible with all major brand derailleur systems.