Originally Posted by Sheldon Brown
It won't. 38 is the smallest that can physically fit on a 130 mm BCD crank, ....
chainrings.com has a 37 130BCD. I also saw a custom 36, made from a 36 110 that had had the holes redrilled. Was a bit lacking in material around the outer part of the bolt holes,but the guy was riding it....LOL