... one rider did fall and sustained a broken collar bone. The tacks were long enough to cause punctures in a motor cycle and at least one car from what I saw when watching the highlights on the ITV Player on my PC this evening.

You're right, it's a bloody stupid and dangerous thing to do quite apart from being childish. It can only be a silly prank as no protest group has claimed any responsibility. You should be glad your punctures have been in the rear wheel - much more frightening and more difficult to control when in the front of a two-wheeled vehicle and I've had them on both motor and pedal cycles.

I was pleased that Brad, as the current race leader, exercised the authority his position warrants and effectively neutralised the race until Cadel Evans rejoined the peloton.

Robi