I made the decision tonight to do a sprint tri in June. I am overweight but I do ride my Giant OCR 3 road bike frequently. I don't know if I'll run = probably walk. So, what I'm asking.......what do I need like swimming and stuff? Can I wear the same bathing suit and ride the bike and walk/run? I am really, really new!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! By the way, the swim will be 1/4 mile, bike 10 miles, run 3 miles.