Hello all. Does anyone know of a web resource which details the ideal effective length of a top tube? Actually, even better would be a resource which details the best reach to the hoods (including stem). All resources I've found focus on seat tube length, which is of little use considering different manufacturers make frames with varying seat tube lengths (i.e. a medium giant isn't the same as medium trek etc). I know a proper fit by a LBS is the best way, but I'm trying to look at something retrospectively. I have a Planet X bike size 48cm seat tube, 54.7 eff top tube and a Trek 1.9, size 54cm seat tube and 53.9cm top tube. I'm trying to work out if one is too big/small. They both feel OK to ride, which is I suppose the main thing.