It's hard to compete with Wobbly John for velo-madness....
I never rode it, I'm too chicken, but my friend Tom (who made the Wren recumbent), also made the Bedstead Tallbike.
Yes, it's just a bedhead, with bits of bike welded on. I think he's in the process of dismounting here, which involved a bit of a leap. Getting on was a sort of clambering action...
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Having been a 'bent rider for almost 20 years, and visited many roadshows etc I have ridden most things - however the weirdest of all must be one I have never seen in the flesh, but intrigues me....