Unless you’ve had your head in the sand for the past week, you’ll know the 97th Tour de France gets underway this weekend. The anticapation couldn’t be any higher with the prospect of one of the most exciting races about to commence.

Eyewear brand Oakley supports many of the top pros, and will be giving dedicated fans and followers a chance to walk away with a pair of very limited edition BMX Chrome Jawbone as worn by Thor Hushovd, Mark Cavendish and Frank and Andy Schleck during the Tour of California.

But this is no normal competition. Instead, Oakley will ‘drop’ a free pair at 20 secret locations around the world at the end of each of the 20 stages of the Tour. To find out where you’ll need to be following the official Oakley Twitter or Facebook pages to get the details. The first person to arrive at the secret location takes home the prize.

Those all-important address to bookmark are www.twitter.com/oakley and www.facebook.com/oakley

While you’re at it, also make sure to check out Oakley’s BehindTheTour.com website, a dedicated Oakley Tour de France site with exclusive access to Oakley-sponsored riders competing in the race.