My old 440EX custom job, before YFZ/CRF450's existed
 

I built this along time ago, in about 2001 when 440EX's were running the show as far as 4-stroke performance track/dune quads. I had the IMS hi comp pistons, titanium valve kit, port/polish, etc. was pushing around 50hp at the time. These pics are well over 7 yrs old but thought why not post'em...

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http://i136.photobucket.com/albums/q...ySoob/quad.jpg
http://i136.photobucket.com/albums/q...b/quadjump.jpg
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Nice. Getting some big air on that thing man. I love how you can see the guys on the bikes clearly looking up.

Great job on the Quad, If you had wings you would fly. :)

Man-I wish I had a place to ride on the beach! All we got are rocks, roots & mud- and I live on the coast! But I'd be looking through a set of steel bars if I was caught on a local beach! Nice bike tho- must be nice landing on sand rather than granite rocks- I hate Mass!