I know links have been posted before to his work, but I noticed this guy's link/blog while checking out Motorcycle Picture Of The Day (http://motorcyclepictureoftheday.blogspot.com/).
(http://farm5.static.flickr.com/4056/4231423043_b8644afd45_o.jpg)
(http://farm3.static.flickr.com/2736/4231431803_455fb1b499_o.jpg)
OBIBOI's blog (in Italian, mind you..), where he posts some of these sketches, is located here:
http://motosketches.blogspot.com/
I grabbed the images from March/April of 2008.
Happy New Year!
Nice! He has a calendar out for this year with a different Euro-enduro reinterpretation for each month.