well...MBc has a lot of traffic, & we don't have room for everything...and, there are those who benefit from our posting of their sites, but we don't see much reciprocal linking even after a year and a half...this is why we have rules concerning linking to other forums and such.
the internet is a strange place, we protect our corner of it zealously.
Even though there appears to be a mish-mash of different bikes there, it's pretty interesting, anyway. It appears that many of the pages on that site are of motored bikes. The end-to-end one, for instance described a motored bike run from lands end in Cornwall to the northern tip of Scotland.
Also, the Turing article noted that Alan Turing drove a motored bike in the early '50s, never acquiring a car.