Tour de France: Contador's stage 2 crash captured by on-board camera - Video

A bandaged and bruised Alberto Contador finishes stage 1 of the Tour de France after a crash earlier in the day.

A bandaged and bruised Alberto Contador finishes stage 1 of the Tour de France after a crash earlier in the day. (Image credit: Courtesy of Polartec-Kometa)

On-board cameras, hailed in some corners as a a key part of the future business model in cycling, are being widely used in the Tour de France and they captured a key moment of the race on Sunday as Alberto Contador crashed on stage 2