All the front runners stuffed things into their ride-jersey's pockets.
Taped spare inners onto the frame that which wouldn't fit under the saddle.
They were the fast ones.
This is from my article:
"The winner of the vet’s category, David Hayward (9hr06m) currently the Vet’s National Mountain Bike Champion 2009 was keen to beat off the challenge from his arch nemesis, David Powell (9hr 09m), .... As for feeding, “My strategy was three gels & one and drinks bottle filled with a 6% strong Hi5 energy drink per hour but I drank nowhere near that, maybe ½ a bottle an hour & ran the risk of running out of energy.” Continuing, “At the feed stations I’d deposited a pair of brake pads, a bottle, an oil can, seven gels and two energy bars.” David kept all his kit, space blanket, multi tool, inner tube, whistle, car keys, CO2 can in a saddle bag, everything else got taped to his bike, confirming that the really fast racers don’t use any back packs."
Last yr, a pal of mine took his rd bike on holiday with the family to Europe. It worked a treat. Every day he rode from 6-8am. Think it really helped the whole family out!

