Rescued the thread from page 3! 32 miles in the bag, Ran out of energy badly after about an hour, which I don't normally do. That said, the first hour was where all the climbing was, from half way it's predominantly downhill - with a few short sharp climbs. Need to start thinking about 'nutrition strategies' for 2 hour + rides. Half a bottle of Lucozade Sport clearly isn't enough, although it got me back home.