Often the best guys are just those that can suffer longer, who don't give up. And it's so easy to give up, when you're on a mountain and it's really hurting. We go through a lot physically.

The manner in which one loses the battle can sometimes outshine the victory.

I shave my legs twice a week. It's hard the first time you do it. But I'm very lazy. For a team photo in December I just did the fronts.

I had grown used to getting a pat on the back and being told after a good result: 'Well done, David - you should be happy, you're the first clean rider.

There will always be cheaters. It is human nature. It will never be 100 percent clean, in any sport.

The first time I rode a bike I was four or five. I crashed into the back of a car.

Often the best guys are just those that can suffer longer, who don't give up. And it's so easy to give up, when you're on a mountain and it's really hurting. We go through a lot physically.