All V3 2.0 chains use x-ring seals to reduce friction, and drilled links to reduce rotating mass.

The EK SRX2 Series Chains feature advanced QX-rings that outperform factory O-ring chains. Laboratory tests have demonstrated that QX-rings reduce friction by 40 percent, extending chain lifespan by up to 50 percent compared to traditional O-ring chains...

Advanced RK XW-ring offers three lubrication barriers to reduce friction and heat to offer longer wear resistance.

Almost any small motorcycle can now benefit from EK's race-proven product line. EK's standard non-sealed chains are manufactured to meet or exceed strict quality control requirements. EK's commitment to providing a top-quality product at a reasonable...

Solid rollers and bushings with quad-riveted pins for extended wear-resistance. Special coating treatment for 40% increase in chain life.

The EK Z3D Series Chain sets a high benchmark for chain design with its blend of striking aesthetics and superior performance. Each outer plate features a 3D curved shape that is not only visually appealing but also engineered for exceptional stiffness...

Hyper-performance chain-RK's latest technology. Specifically designed for today's heavy, high horsepower bikes and extended swingarms. Reinforced components made of the finest materials and RK's original XW-Ring for maximum strength and wear-life.

All chains are made with Japanese steel and meet all Japanese specs. Japanese quality at a lower price point.

Average tensile strength of 6,800 lbs

Traditional round O-ring chain that's a convenient blend of performance and affordability. RK's 520SO Chains are suitable for low- to mid-range cc motorcycles that came from the factory with sealed chains.

Used by professional SX and MX race teams the MXZ chain features high-quality pins, bushings and rollers for maximum durability.

RK's XRE series chains are the successor to XSO chains. Compared to XSO, XRE series chains feature a 20% longer wearlife. XRE chains include XW-sealing rings which provide two lubrication pools which help protect against high speed abrasion and prevent...