2009-06-27 Sat - The Maths Geek ride √-4 - London to Oxford

I did 260k geared on the Paris Roubaix last year. 300k flat and without cobbels is easily doable for young thin fit experienced cyclists.

Not when they've done the first 200k at 30kph..

Longer distances: it's all about eating, drinking and not riding too fast.