What's the difference between Fulcrum Racing 3 and Fulcrum Racing S3? I'm able to buy a set of Fulcrum Racing S3 wheels.  I searched in all their on line catalogues but the wheels in the picture the guy send me are nowhere to be found.
I'm thinking these are exclusively made for Specialized bikes, could this be true?
The difference between the Racing 3 and the racing S3 is that the racing S3 is a 35mm deep aero wheel and the racing 3 is a more shallow lighter wheel.