Page 2 of EK Motorcycle Chain Catalog by EK Chain

1000km Distance Conventional Chain Conventional Chain Comparison of Initial Stretch After 1000km Comparison of Chain Condition After 1000km AMA 250 GP CHAMPION 2003 AMA NATIONAL ENDURO CHAMPION 2003 AMA SUPERSTOCK CHAMPION 2002-03 FORMULA XTREME CHAMPION 2002 AMA 125 WEST SUPERCROSS 2002 AMA/PROSTAR TOP FUEL 2000-03 DOES YOUR CHAIN HAVE ALL THESE FEATURES? ABOUT EK CHAIN EK QUADRA-X RINGS VS. O-RINGS EK CHAIN LIMITED wARRANTY www.ekchain.com 2 EK O-ring and Quadra-X Ring Chains are warranted against defects in materials and workmanship for 24 months/unlimited mileage (street use) or 12 months/unlimited mileage (off-road use). The warranty period begins on the date shown on the sales invoice or receipt. This warranty is void for any use other than those applications recommended by EK Chain. This warranty does not cover the use of EK Chains in competitive events, or on motorcycles that have been modified. No one knows more about sealed chains than EK. After all, we invented the O-ring chain for motorcycles way back in 1974. Since then, weve improved on our invention with the revolutionary Quadra-X Ring seal. The Quadra-X Ring reduces friction by as much as 50 percent, thanks to its smaller contact area. Yet it offers even better sealing than a conventional O-ring, because it has twice as many contact points between the ring and sideplates. Its the optimal combination of maximum sealing protection with minimum friction. Many sealed chains are a trade-off: In the quest for low friction, the quality of the seal between the rings and sideplates is compromised. While such chains may offer lower friction initially, their loose tolerances ultimately lead to lubricant loss, premature wear, and increased friction in the long run. EK Quadra-X Ring chains combine reduced friction and long wear lab tests show that they last 50 percent longer than standard O-ring chains. EK Chains new Zero Stretch Technology virtually eliminates measurable chain stretch in the first 1000km of use. ZST puts an end to the hassle of retensioning the chain after the initial break-in period, when most chain stretch occurs. For racers, this can mean going several race weekends without a single chain adjustment. You also get the confidence of knowing that a chain with ZST will stay within wear tolerances throughout its entire service life. ZST is standard on the 530ZZZ chain, and available as an option on the 520RXO chain and all MVXZ series chains. Founded in 1941 as a general roller-chain manufacturer, Enuma Chain is headquartered in Kaga, Japan, an industrial area near Komatsu on Japans west coast. Long a technological innovator, in 1974 Enuma introduced the worlds first sealed O-ring chain, a design that dramatically extended chain life by inhibiting lubricant loss. This breakthrough quickly became the standard throughout the motorcycle industry, and led to todays high-tech EK Quadra-X Ring chains that further prolong durability while reducing friction. But motorcycle chains are only part of the story. Enuma chains can be found throughout the world in a variety of applications, including farming equipment, conveyor systems, vending machines, automobiles and a variety of manufacturing environments. Among Enumas major customers are Kawasaki, Kubota (construction equipment), Iseki (tractors), Matsushita Electric and Mitsubishi. Quality is an obsession at Enuma Chain. In 1997, the company was certified to ISO 9001 qualitymanagement standards. This certification recognizes the high standards of our quality assurance system, and reinforces our guarantees of safety and precision in every product we sell. Research and development at Enuma have always focused on creating technological breakthroughs and developing original ideas. Our invention of the O-ring sealed chain was based on years of accumulated technology, exemplifying a relentless commitment to innovation that continues to drive everything we do. Sideplate holes reduce weight, lower friction, dissipate heat, extend O-ring life, and facilitate self-cleaning Protruding bushings help extend O-ring life and inhibit kinking. Sideplates made of high-strength, heattreated alloy steel to resist chain stretch. Pins are quad-staked to the sideplates for reliability. Solid bushings and rollers are precision centerless ground and shot-peened, to minimize friction and maximize strength. EK Quadra-X Ring seals reduce friction by 50% compared to conventional Orings. They keep dirt out and the high-tech grease in. Conventional O-ring EKs Quadra-X Ring

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