Originally Posted by
dvs cycles
There is a company called "problem solvers" That makes all sorts of combinations of shim sizes. Don't have a link but have seen them in my internet shopping. If I find something exact I will post it.
Closest I could find was 26.0 to 27.2 here:
http://www.gtgtandems.com/parts/shims.html
What you want is just too thin probably.