I've done a search and couldn't find a problem exactly like mine; I have a Specialized Roubaix with about 500 miles on it and just recently started clicking only when I'm standing up and pedaling. It's a double click, and sometimes three if I'm going faster, that starts on the downstroke on both sides. It does this in all gears. I've tightened everything except the bottom bracket (don't have the tool). I've ruled out the pedals and cleats because I reinstalled the flat pedals and the noise continued. According to Park Tool Repairs and Sheldon Brown, my next step should be to remove, grease and reinstall the bottom bracket. Before I buy the tool or take it to the shop, can anybody recommend some other simple checks?