For eight days in June, I'll be cycling over some of the biggest mountains in the Alps for charity. I'll be joining 70 other brave riders in the 1000km from Geneva to Cannes in aid of LEUKA.

LEUKA raises funds to support life-saving research into the causes and treatment of leukaemia, at the Catherine Lewis Centre, Hammersmith. It's one of the world’s leading specialist units.

We'll be averaging 125km a day through Italy and France, struggling over the toughest Cols of the Tour de France. This was a very serious endeavour in 2007, and I'm now three years closer to 40, so it's definitely going to hurt! Please support me by donating as much as you can.

Donating through JustGiving is simple, fast and totally secure. Your details are safe with JustGiving – they’ll never sell them on or send unwanted emails. Once you donate, they’ll send your money directly to the charity and make sure Gift Aid is reclaimed on every eligible donation by a UK taxpayer. So it’s the most efficient way to donate - I raise more, whilst saving time and cutting costs for the charity.

So please dig deep and donate now.