Onyx Cog-Stainless Steel

The Onyx Cog-Stainless Steel at J&R Bicycles are CNC machined from solid stainless steel to provide maximum strength without adding on too much weight. Heat-treated for durability this cog is designed for use with cassette Onyx Ultra SS. And they are made in the USA.

IMAGE NOTE: The image shown is for reference only. You will be getting the size that you order when you purchase.