I've hit 55mph a few times on Tytherleigh Hill (A358) near the East Devon/Dorset border on my road bike. Its about 1/2 mile long and really steep. Its an easy and relatively safe spot to do it though as its dead straight with a nice gentle uphill run out at the end, no need to use brakes.
Ive never been much over 39mph on fixed, far more scary.
I've hit 55mph a few times on Tytherleigh Hill (A358) near the East Devon/Dorset border on my road bike. Its about 1/2 mile long and really steep. Its an easy and relatively safe spot to do it though as its dead straight with a nice gentle uphill run out at the end, no need to use brakes.
Ive never been much over 39mph on fixed, far more scary.