The world-famous chainring used by Olympic and World Championship medallists. Stiffer than any other track chainring, and most reliable, smooth, straight chainring, utilising the world Famous Super Sugino S-cubic Coating (S3)
The S-Cubic Coating (S3) is smooth and shiny combines high hardness with low friction coefficient can minimise the chain driving resistance and achieve more effective power transmission, will offer amazing performances at track races wherein the winner is often decided by hundredths of a second. The friction resistance is less than half that of the titanium coating.
The name ZEN comes from Japanese "禅". The use of ZEN meditation will reduce stress and increase the power of concentration through emptying the mind of thoughts, which gives you significant performance gain. We named it ZEN in the hope that it will help you to obtain results you desire.