How much would a TREK TTX 9.9 SSL Equinox weigh?

The Trek site shows this bike with a SRAM red group, so what you are looking at would weigh more. Bike companies don't publish bike weights as a general rule because there are too many variables. The frame itself accounts for a fairly small percentage of total bike weight, so the components used are really what determines the overall weight. If this bike is built up using an unusual component combination, nobody will have a comparable bike to weigh. Frame size also changes overall weight. You will probably have to weigh the bike yourself