The tack attack: a Casey B. Gibson gallery

The steep, narrow climb was lined with spectators — some of whom were bearing tacks. Photo: Casey B. Gibson | www.cbgphoto.com

Defending champ Cadel Evans calls for help with a flat rear tire near the top. Photo: Casey B. Gibson | www.cbgphoto.com

Evans waits for a wheel change from a teammate at the top of the Mur de Peguere. Photo: Casey B. Gibson | www.cbgphoto.com

It was a long wait — more than two minutes, according to AFP. Photo: Casey B. Gibson | www.cbgphoto.com

An incoming BMC rider signals to Evans that his rear tire is flat as well. Photo: Casey B. Gibson | www.cbgphoto.com

Evans is finally pushed back into the race after a wheel change. Photo: Casey B. Gibson | www.cbgphoto.com

Race leader Bradley Wiggins holds up the yellow jersey group after hearing Cadel Evans has flatted. Photo: Casey B. Gibson | www.cbgphoto.com

The race leader calls a truce. Photo: Casey B. Gibson | www.cbgphoto.com