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EK’s MVXZ Quadra-X Ring chain is the ideal replacement chain for any 600 to 1000cc street bike. Features like lightening holes in the sideplates, large-diameter pins, and friction-reducing Quadra-X Rings help ensure high-performance and from 1 1/2 to 2 times increased wear life when compared to a standard O-Ring chain.






The SRX series chains are an excellent value for any street machine. The SRX chains feature lightening holes, reduced friction and Quadra X-Ring design which increases chain life from 1 1/2 to 2 times longer than a standard O-Ring chain.







The SRO series chains offer a value-priced O-ring chain that will not compromise on quality or durability. Features include lightening holes*,high-tech heat-treated steel alloys and all the exact same quality and craftsmanship that EK puts into their entire product line.











Quadra-X Ring design reduces friction by as much as 40% because of smaller contact area. The X-Ring’s 4 point contact patch also offers better sealing than conventional o-rings. Lab tests show the Quadra-X ring chains last 50% longer than a standard O-ring chain!





Attract Eyes!
EK offers some chains in special powder coated colors. These chains make your motorcycle good looking and cool. Dress up your motorcycle!

Color availability
Gold, Chrome, Red, Blue, Green, Black, Yellow, Purple, White, Orange, Pink
Metallic Gold, Metallic Silver, Metallic Red, Metallic Blue, Metallic Green, Metallic Orange






EK’s exclusive CRH pin treatment provides an extremely hard outside coating and softer inside to increase strength and reduce chain wear. The Chromium Carbide pin surface coating also offers superior impact and shock absorption while reducing oxidation caused by natures elements.

CRH pin is equipped on the following products.
·420SH, 428SHDR, 520MRDL6, 520MRD6(For Motocross)
·520RX(For Road Racing)
·530DR2, 530DRZ2(For Drag Racing)





EK Chain’s Zero Stretch Technology (ZST) eliminates measurable chain stretch during the first 1000km of use. ZST puts an end to the hassle of constant chain adjustments after the initial break-in period when most chain stretch occurs. Zero Stretch Technology is standard on all ZZZ and 520RXO.


EK’s screw type master links do not require any special tools for installation. This unique patented link gives a rivet-like fit, using only an 8mm wrench and a pair of pliers.










Lightening holes on the side plates

  1. Reduce the chain’s overall weight by 3%, without compromising tensile strength.
  2. Extend the service life by dissipating heat.
  3. Helping reduce dirt and mud build-up.
EK’s chain tool is machined from solid billet hardened steel and designed to last for a lifetime of service. This tool can be used to drive out pins when removing old chains and installing your new chain with the included clamping plates.


EK Motorcycle Chains
We’ve got a complete selection of EK Chains at the guaranteed lowest
prices that you will find anywhere! Below you can browse EK Motorcycle
Chains. Available in 520, 525 or 530 O-ring, X-ring 120 links or 150
links for extended swing arms!!!!
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.
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 Enuma’s major customers
are Kawasaki, Kubota (construction equipment), Iseki (tractors),
Matsushita Electric and Mitsubishi.