The D.I.D. Heavy Duty X Ring chain has a redesigned shape. The patented X-ring construction which reduces friction by twisting between the side plates instead of squashing. Normal O-rings and other manufacturers modified O-rings have squashed points that increase friction. The twisting action of the X-ring disperses the pressure and minimises power loss. Heavy duty. Higher wear resistance. Reduces friction. Patented X-ring construction. Keeps dirt out and lubrication in.
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