Rules are simple, post a pic of your bike in front of the given challenge. There is a 48 hour turn around time. If the challenge isn't met within that time frame, the person who issued the challenge has to choose another. Try and keep the challenges reasonable please.
Just a quick something to mention about the rules (Please correct me if I'm wrong):
1. There has to be a bike in the picture.
2. It has to be your bike (or a previous bike of yours or I suppose the bike that you were riding)