DID 525 ZVM-X X-Ring Chain for BMW F850 GSDID 525 ZVM X X Ring Chain for BMW F850 GS DID CHAIN X RING (ZVM X) MADE IN JAPAN D. I. D's engineers are continuously improving chain designs in order to handle the tremendous horsepower loads of today's high performance motorcycles. In developing the new DID ZVM X series, D. I. D focused on "Rigidity." Traditionally, "Tensile Strength" has been the bench mark to indicate overall strength, but tensile strength is only a laboratory static measurement

DID 525 ZVM-X X-Ring Chain for BMW F850 GS 

DID CHAIN - X-RING (ZVM-X) - MADE IN JAPAN

D.I.D's engineers are continuously improving chain designs in order to handle the tremendous horsepower loads of today's high performance motorcycles. In developing the new DID ZVM-X series, D.I.D focused on "Rigidity." Traditionally, "Tensile Strength" has been the bench-mark to indicate overall strength, but tensile strength is only a laboratory static measurement of a chain's fracture point. Rigidity, on the other hand, is the ability of a chain to withstand the forces that occur in the real world that riders experience. Increased rigidity means better power transfer from the engine to the ground, greater resistance to stretching under load, and overall improved performance that meets the demands of the current high-power bikes and the people who ride them.

• Increased rigidity for better power transfer and greater resistance to stretching under load.
• Overall improved performance that meet the demands of the current high-power bikes.
• Designed to meet requirements of machines bigger than 1000cc.
• Same excellent characteristics of the ZVM chains, but its new X2-ring design provides 40 percent greater wear resistance and better overall chain life.
• Average tensile strength of 10,408 pounds.
• Wear life index: 4000.
• For use on Superbikes; maximum rated displacement 1300cc.
• Weight (per 100 links): 4.65 pounds.

Half the Power Loss - Compared with Normal O-ring chains, D.I.D's patented X-Ring construction reduces friction by twisting between the side plates instead of being squashed. Normal O-rings and other makers' modified O-rings have squashed points that increase friction. The twisting action of the X-Ring disperses the pressure and minimizes power loss.

1.5 to 2 Times Longer Wear Resistance - Compared with Normal O-ring chains, the X-Ring's four contact points greatly increase its sealing performance. This keeps the dirt out and the lubrication in much better than any other O-ring. X-Rings have the greatest wear resistance of any other type of O-ring or non-O-ring chain.

This is a universal fit part; it may or may not fit without modification.

Available: Requires 1-3 business days of lead time prior to shipment