Description:Essential part: This bike chain wheel is an important component to a bike, ensuring a bike can properly work.Simple to install: The hole pitch is about 96mm and the installation of this bike chainwheel is convenient and fast.Long-lasting: Mainly made of aluminum alloy, this bike chain wheel is strong, sturdy and is not easy to be damaged.Well crafted: This bike chainwheel features fine workmanship and the surface is smooth and convenient to wash and maintain.Spare part: This bike chain wheel is durable and is a good choice to replace a worn or damaged chain wheel.Specification:Material: Aluminum alloy.Color: Black, red.Size: Show as picture.Hole pitch: Approx. 96mm/3.77 inch.Thickness: Approx. 4mm/0.16 inch.Note:There might be a bit of color distortions due to different computer resolutions.There might be a slight error due to different hand measurements.Package Includes:1 Piece Chainwheel.