Here’s how it works:
-Become a fan of their Facebook Page.
-They will post a photo each Monday from their collection of "dirty" riders each Monday on their Facebook Fan Page.
-Comment to leave a your caption of the photo.
-The caption with the most “Likes” at the end of the week on Friday will win a GDMX white logo tee!
- The contest will run thru Aug 31, 2011