That's odd. My Shogun 500 has braze-ons for a single water bottle. You can see the screws in post #34. Look just below the last 'N' in Shogun on the downtube. For long rides, I sometimes wish the bike had two sets for two bottles. But I guess I should be grateful for the one! Otherwise, the frames look similar, though I can't tell if your seat stays are attached near the seat post with a flattened part that is welded on... Wish I had a picture handy. EDIT: Found a better photo online. This is what the seat stays look like.