The rule with the S-type is that only the S-bag fits as larger bags interfere with cables, or something like that. Is that an iron rule or is it possible to use larger bags? There looks to be enough room to me but perhaps brake lever clearance over the top of something like the folding basket would be an issue. . . in which case perhaps cables would snag? Or perhaps the S stem projects forward enough to touch the top of a larger front bag?
Anyone tried it?