Clip Type Connecting Link for D.I.D 525VX3 Chains. Steel Finish. Upgraded from the DID 525 VX2 chain, the DID 525 VX3 X-Ring chain fits a wider range of street, ATV, or off-road applications up to 1000cc. New "Direct Energy Transfer" gives you amazing throttle response due to D.I.D. State-of-the-art technology to increase the chain's rigidity. Features greatly improved seal performance due to increased X-ring retention and durability.