As a long-established wholesaler in the United States, EURO-ASIA (Euro Asia), which handles sports bike parts in Europe and Japan, is most good at various types of truck parts.
A typical special cog is this superstar cog, which is a very beautiful gem with a mirror-like chrome finish on the surface. The teeth, which are smooth like a mirror, are very good at separating the chain.
Size: 1/2 "x1 / 8" (thick teeth)
Number of teeth: 13T, 14T, 15T, 16T, 17T, 18T
With special case