Hit around 45mph a few times - off the Long Mynd, Gospel Pass, couple of the decents in the Peaks, etc etc. Always seem to cap out around 45...problly as I'm on MTB gearing most of the time and spin out in the low 30s.
Hit the low 30s on the flats with stupid tailwinds a couple of times - on Sout Uist in the Outer Hebrides - setting off hit 15mph from a stationary without even peddling. Other time in Gemany on a plateau 5-600m up with a thunderstorm and lightening incoming. ****ing it due to the fear of getting hit and lack of cover probably helped with the speed too....