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EK 525MVXZ2

O-Ring Race Chains

EK’s heavy duty QX-Ring chain is the idea choice for 600cc-1000cc street bikes.

Featuring side plate lightening holes, large diameter pins, and the premium friction reducing QX-Ring seal to ensure 1.5-2 times longer life than a standard O-Ring option. It also comes standard at 130 links, x10 more than a typical 520 chain for applications that require extra length.

QX-RING TECHNOLOGY - Our Quadra X-ring (QX-Ring) is a slim profile chain with 40% less friction than a normal O-Ring chain and 150% better endurance.

Featured on many of EK’s racing chains are lightening holes. Here specialised manufacturing allows EK to add holes to each side plate, resulting in a total weight saving of 3% without sacrificing any tensile strength. These lightening holes also extend chain life by dissipating heat and deterring mud build up.