Years ago, when both the world and myself were young, a friend and myself were freewheeling down a long pass from one dale to another. The roads were deserted apart from the two of us, and we were trying to see who could freewheel the better. We were both on the drops, and tucked down. I don't know what speed we were doing - there were no computers in those days. Both me and my saddlebag were the heavier, and I was pulling away from my friend. I sat up on the hoods, can't remember why, and in a second or two my friend came rolling down past me. He said that from where he was, the effect of me sitting up on the hoods (we called on the tops) was like putting my brakes on.
As for perecentages - I couldn't guess, but riding into the wind, it certainly makes a difference.
Last edited by JohnW
on Mon May 13, 2013 3:52 pm, edited 1 time in total.