Description:

Made of quality aluminum alloy; wear resistance, strong tensile strength
Corrosion and rust resistance, high strength and sturdy
It is used to mount single chain wheel because the double chain wheel screws is too long to lock by wrench
Suitable for bike headset, stem, and chain wheel changing
Inner Diameter: 9.8mm/0.39inch; Outer Diameter: 12mm/0.47inch; Thickness: 1mm

Specification:

Material: Aluminum Alloy
Inner Diameter: 9.8mm / 0.39 inch
Outer Diameter: 12mm/0.47 inch
Thickness: 1mm / 0.04inch

Package Includes:

10 Pieces Bike Chain Wheel Washers