I'm a race game addict. Those that work are enormous fun

The genre is understandably dominated by horse and car racing.  But
we've had cycles, stock cars, trotting, chariots, greyounds (even
though they turned out to be foxes!) and right on the fringe there's
that hare and tortoise/hedgehog.

But this morning, my wife - who in her youth was a fan of speedway
(motorbike) racing, which probably meant that her then current
boyfriend was - asked why we hadn't any race games featuring
motorbikes.

I hadn't previously thought about it but she's right.  We haven't.  So
the question is "Are there any?"   Maybe we have had such games in the
past and they've been dumped as not being good as games, but I can't
think of any title.

I'm now curious.  So if you know of any such game I (and she) would be
interested to hear.

(What's more, I would have thought that 'scrambling' would have been a
great subject for a boardgame.)  

Derek