EK Chain



Founded in 1941 as a general roller-chain manufacturer; Enuma Chain is headquartered in Kaga, Japan, an industrial area near Komatsu on Japan’s west coast. Long a technological innovator, in 1974 Enuma introduced the world’s 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 today’s high-tech EK Quadra-X Ring chains that further prolong durability while reducing friction.

 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.


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