on my roady trip over the alps and back, italy to france and back. i got 46mph down one side of the alps ! and i got 37mph pedaling from still ont he flat ! and i was using a 3 speed sturmey hub,!! o love them ! and at 46mph down a hill i had AGES to get more speed, but it just wouldnt ! i was out of gears, and i was tucked like hell off the back, i tried lying into the top tube too, but NOTHING worked, the top speed doesnt feel that fast, but on a set of 8 really steep hairpins,, i was prob goin about 40mph, and i managed to over take 3 lorrys and a motorbike all on the inside. that felt way faster ! iolo.