• High compatibility: This chain is suitable for 6/7/8-speed bicycles, 1/2 inch x 3/32 inch. Compatible with road, mountain, and sports bikes. • High strength: Made with special forged steel, this chain offers high strength and durability, ideal for demanding routes. • Smooth lubrication: The polished surface and internal lubrication provide protection against corrosion and rust. The double X bridge design ensures quick and smooth shifts. • Compact and portable: With a compact design and portable box packaging, it is easy to carry anywhere. • Easy to handle: The quick-release links allow for easy disassembly and installation.