Alloy Steel

[Smooth Shifting] - The surface of the 6/7/8 speed bike chain is polished and double X bridge shape design for fast and stable shifting, oiled chains to provide corrosion and rust protection. The surface of the 6/7/8 speed bike chain is polished and double X bridge shape design for fast and stable shifting, oiled chains to provide corrosion and rust protection.

[Smooth Shifting] - The surface of the 6/7/8 speed bike chain is polished and double X bridge shape design for fast and stable shifting, oiled chains to provide corrosion and rust protection. The surface of the 6/7/8 speed bike chain is polished and double X bridge shape design for fast and stable shifting, oiled chains to provide corrosion and rust protection.

[Smooth Shifting] - The surface of the 6/7/8 speed bike chain is polished and double X bridge shape design for fast and stable shifting, oiled chains to provide corrosion and rust protection. The surface of the 6/7/8 speed bike chain is polished and double X bridge shape design for fast and stable shifting, oiled chains to provide corrosion and rust protection.

[Smooth Shifting] - The surface of the 6/7/8 speed bike chain is polished and double X bridge shape design for fast and stable shifting, oiled chains to provide corrosion and rust protection. The surface of the 6/7/8 speed bike chain is polished and double X bridge shape design for fast and stable shifting, oiled chains to provide corrosion and rust protection.

[Smooth Shifting] - The surface of the 6/7/8 speed bike chain is polished and double X bridge shape design for fast and stable shifting, oiled chains to provide corrosion and rust protection. The surface of the 6/7/8 speed bike chain is polished and double X bridge shape design for fast and stable shifting, oiled chains to provide corrosion and rust protection.