Just found this, my ride report from five years ago when i did this ride. We had a strong easterly all day. I feel chafed just reading it again:
I and three friends set out on Saturday to ride the length of the South Downs Way, 100 miles of hilly bridleway from Winchester to Eastbourne, over 10,000 vertical feet of climbing, just under 12 hours in the saddle.
Saturday morning we set off at 4.30 am after a massive breakfast of pasta, tuna, eggs, muesli and banana shakes, into a brisk headwind that was to rise steadily throughout the day.
Breaking the journey into 25 mile chunks helped psychologically and the first milestone was reached in under 3 hours, ending with a white-knuckle 43 mph grass descent of Butser Hill.
This proved to be the high point of the day, the lows (there were many) beginning at the halfway mark food stop when we were passed by a platoon of Gurkhas on a training run. Our pathetic inability to catch them until the trail turned downhill was a harbinger of things to come.
Long savage climbs followed by downhill stretches that were too short and bumpy to recover our strength, or of such gentle slope that we had to keep pedalling into the wind, quickly sapped our strength.
My dreams of effortlessly dancing up the hills like Lance Armstrong faded into the grim reality of plodding like Neil while puffing like Louis.
Food and water stops became more frequent as the heat and wind took their toll and our psychological milestones reduced to 10 mile blocks, a big figure change now being a cause for celebration: 60s slowly became 70s and we knew once we got to 80 then another 10 miles would take us to the final home run stretch.
Lewes was reached around the 75 mile point and the start of several unbelievably steep climbs, eyes screwed tight against the sun's glare off baking hot flinty chalk, the hills shielding us now from the cooling effect of the headwind.
Finally, with two climbs to go Eastbourne hove into view and 90 minutes later we made the final descent into that popular seaside resort, reaching the station at 7:45 pm, over 15 hours after leaving Winchester. Average riding speed, excluding stops, just above 8mph.
(Incidentally we saw the Gurkhas' Bedfords waiting for them some 20 miles further on from our food stop
)