I took a lot of advice for cycling further distances form this group
and elsewhere on the infoweb. I did a big (200km) cycle at the weekend
using all the information gained and found it quite easy. So, to
recap...this is what i did
drank 3 pints water before starting, 1 with energy powder mixed in
prepared 2 litres energy drink for every 4 hours cycling
ate banana, cake, energy bar every hour
break every 2-3 hours for coffee, food or lunch
only smoke on breaks