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.
EK 520 QX-Ring Chain 130 Link