Five-time Grand National Cross-Country Champion Scott Summers chooses EK Chain for the same reasons you should: reliability, quality and performance. With a national championship on the line every time he races, Summers can’t afford to have anything on his bike that won't make it to the finish. EK off-road chains have what it takes, whether you're riding a factory enduro bike or your weekend playbike.
520MVXZ: Premium Quadra-X Ring Chain With beefy 5.38mm-diameter pins and 2.20mm inner and outer plates, and EK’s exclusive Quadra-X Ring seals, it's no wonder Mike Lafferty chooses the 520MVXZ for his KTM. Quadra-X Rings offer 50 to 100% longer life than O-rings, while reducing friction up to 50%. High-tech reinforced rollers help provide phenomenal tensile strength. Available in a variety of colors (120 links only). Recommended application: up to 750cc, 100hp Available colors: gold, chrome, red, blue, green, yellow, purple, black (new!) Tensile strength: 9000 lbs. Available lengths: Up to 130 links
520SRX: Value-Priced Quadra-X Ring Chain SRX-series chains offer excellent value, and improve on the SRO-series chains with the superior sealing and reduced friction of EK Quadra-X Ring seals. Recommended application: up to 750cc/90hp Available colors: gold Tensile strength: 8500 lbs. Available lengths: Up to 120 links
SRO Series: Economical O-Ring Chains Value-priced O-ring chains that don't compromise on quality or durability, with such features as solid bushings, solid rollers and high-tech heat-treated steel alloys. Recommended application: up to 100cc/12hp for 420SRO; up to 200cc/15hp for 428SRO; up to 400cc/50hp for 520SRO Tensile strength: 4300 lbs. for 420SRO; 5300 lbs. for 428SRO; 8000 lbs. for 520SRO Available lengths: Up to 120 links
Off-Road & Dual Sport Chain Applications By Engine Displacement
50cc
420SRO
85cc
420SRO
428SRO
100cc
420SRO
428SRO
110cc
428SRO
125cc
428SRO
520SRO
520SRX
520MVXZ
250cc
520SRO
520SRX
520MVXZ
350cc
520SRO
520SRX
520MVXZ
400cc
520SRO
520SRX
520MVXZ
500cc
520SRX
520MVXZ
600cc
520SRX
520MVXZ
750cc
520SRX
520MVXZ
Note: These are only general recommendations. Refer to your owner’s manual, the EK chain selector or check your current chain to determine the correct chain size for your bike.
