Complying with RoHS, CPSIA and REACH regulations (free of hexavalent chromium and other toxic materials), the EPT treatment technology improves the chain protection by completely coating all the components to form a comprehensive and durable anti-corrosion surface. Its anti-rust capability is superior to other anti-rust chains<span class=”entity”>&rsquo;</span> performance by 30%. By substantially increasing the anti-rust coefficient, EPT is able to reduce the probability of outer and inner chain rust by protecting against mud and water infiltrating the chain structure. It allows less maintenance for Cross Country and Cycle Cross riders who frequently navigate muddy courses. It also a must have for Fat Tire and City/Urban bikes.