Offhand, "Tour de Suisse" sounds more like a model name than a brand. Historically, such models names are associated with a model from a full range/mass volume manufacturer that is aimed at the general consumer. Normally, this would imply an upper, entry level model. However, this may be an exception and, as previously stated, we need details to make an accurate assessment. A good overall drive side pic and close-ups of the major components and the tubing decal (if present) are preferred. Barring that, the brand and models of the major components and the contents of the tubing decal are the very minimum.