This is as much a personal challenge as it is for charity.  50 miles is as far as I have cycled before.  I am also cycling the 2017 RideLondon-Surrey 100 for Prostate Cancer UK.

Ignoring prostate cancer won't beat it. Prostate Cancer UK has a simple ambition – to stop men dying from prostate cancer. Through shifting the science over the next 10 years we will stop prostate cancer being a killer.