Mr Chiles has actually lost a lot of weight. He's a regular cyclist as can be seen from his legs at
http://www.sportrelief.com/supercycle/about
It's the hype that gets me...
"All the experts have told Alan and Adrian that they're crazy to even attempt such a challenge."
Obviously they haven't heard about many an audax rider... PBP.. LEL.. or E2E record of 44 hours, 4 minutes and 20 seconds, set by Gethin Butler in 2001 ( a bit faster on 'bent by Andy Wilkinson).
At least Mr Chiles appears to have been putting in the miles training for this, unlike a certain footballer accompanying him.
I hope they do it, but I have a feeling that Shearer is going to suffer a bit more than Chiles