The world-famous chainwheel set used by Olympic and World Championship medalists. Combination of highest quality track racing crank Sugino75 and Super-rigid ZEN144 chainring, Top-of-the-range model.
Crank : SUPER SG75 144
(165, 167.5, 170, 172.5, 175)
Chainring : SUPER ZEN144
(1/2"x1/8" 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
B.B. : BB-SG75 SUPER CERAMIC (sold separately)
Chainline : 42mm
Color : S3 Gold*
*S-cubic coating (S3) is smooth and shiny combines high hardness with low friction coeffcient can minimize 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.
As SG75 Series use a proprietary taper called "SG75 taper", SG75 crank should only be used on SG75 bottom bracket.
*Please note that large chainrings may touch the chain stay.