Best speed

25 on flat tarmac - gears run out of steam then though (as I mentioned in my "looking for a new bike" thread).

Best average in a 10 mile time trial was 27.8mph for a finishing time of 21:35

Fastest downhill was 56 mph on a mad hill between Kingsbridge and Plymouth when I was based there in the Navy many moons ago. Wouldn't so it now though as I'm sane

Cool

I really did think I was the only lycra clad leg shaving pansy on here obsessed with knocking nano seconds off my PB

58 on the descent into Brighton off of Ditchling Beacon and the same on the descent of the Col D'Aspin, just before the rear wheel went wobbly, caused me to need a fresh set of Lycra

45.7mph on my old Kona Hahanna rigid steel frame with a loose flex stem

that was down a steep single track road somewhere in the dales, with 8ft banking on each side topped by a dry stone wall... that we'd never ridden before as we where trying out the MTB clubs new bike trailer one lad had built for his A level design tech project

45 was when i wimped out and pulled the lever.. 2 mates carried one - and didnt make the sharp left hander at the bottom - with one of them spread eagled against the banking tangled in his bike, and the other guys stood in the middle of the road killing himself a laughing... and his bike was further up the bank.... with his handlebars at a jaunty angle after the impact with the bank had snapped his steam and it was only still attached by the sticker on the side...

Hmmm, last time I had a speedo on a bike was when I was about 15 years old. I'd just fitted it and was too busy looking at it to notice I'd drifted off to the side of the road slightly and smacked into the front of a parked Buick (lived in the Middle East at the time). Can't remember the speed but was fairly quick as I was attempting to see how fast I could get up to. The deceleration of hitting the front bumper threw me off the bike, landing on the roof of the car Amazingly the front wheel was fine, but the forks got bent backwards so the wheel was now behind the lower frame cross member

Those are some impressive speeds guys. You wouldn't want to be coming off at those speeds OUCH.

I managed a GPS 38.8 offroad in the alps last summer

I've read that you can die from blood loss from coming off at 30 which is why I haven't tried to better myself yet. I want a long, straight road with a reasonable downward slope with no sideroads or buildings if I'm to attempt to better it. Having not found any such roads locally, I haven't tried.

You could die from blood loss coming off at 2mph if you hit the wrong part of the scenery though, there's so many variables involved you can't really assume you'll be OK if going less than X speed, but might die if you fall off over that speed.