There were plenty of controversial moments when the racing had finished during this year's Tour de France, but we also had a few reminders of just how toughthese riders have to be. Here are 5 of the more memorable crashes in the 2007 Tour de France.

1. It's the start of the Tour de France and the tendancy is to go for it. Stuey O'Grady pushes things just a little too hard in London for his first crash. This clip is short and sweet - a little bit like his Tour this year. Stage 8 would end it for him with terrible injuries. Luckily (or unluckily, I suppose) he was uninjured in this crash.

2. Marcus Burghardt meets a dog. Phil Liggett and Paul Sherwen dissect the fortunes of the dog and the wheel involved in this crash...oh yeah, they also mention Marcus Burghardt, too. They should think about re-installing bicycle bells..brrring, brrring, look out ya stoopid mutt!

3. Sandy Casar and Frederik Willems also meet a dog. This pooch was like a guided missile on Casar's wheel. Somehow Casar was able to remount, reconnect and win the stage, minus half his arse.

4. The front of the peloton was the place to be in the run in to the finish of Stage 2 in the final run into Gand. Anywhere behind 20th or so and you were eating gravel at 50km per hour.

5. Time trials in the rain are always a recipe for disaster. Just ask Fabian Cancellara and Vladimir Gusev who slides up the gutter the hard way...on his chin. Oh yeah, there's also a motocycle driver with a red face in there, too.