DID 520ERV3 RIVET LINK (ZJ), DID-L-520ERV3GGZJ, DIDRL520ERV3GGZJ

LightWeight, Low Friction X-Ring

The X-Ring DID four contact points greatly increase its sealing performance. This keeps the dirt out and the lubrication in much better than any other type of sealed chain.
X-Rings have the greatest wear resistance of any other type of sealed or Non-O-Ring chain.

Part No. 30-857.RL.G&G (phoenixmotos.com)

Cross reference numbers ONLY.