http://www.teamatomicracing.com/Site/Photos/Pages/CRA_May.html#9

let's load it up and get it on the track.  this looks cool...

Yeah, cool & all... Why not just buy a 749?

Haha!  Cool... Don't think that thought hasn't crossed my mind already   

I'm actually looking at a set of fully adjustable Showa forks as my next big mod; one step closer to SBK-esque handling   

Of course then there's that whole down-on-power 620 thing...

Quote from: Duc L'Smart on June 13, 2008, 05:12:01 PM
Yeah, cool & all... Why not just buy a 749?

Sure, chuck out imagination and fun if you like, by I'm going googling for body work you can strap to a 620...

The gentleman's bike in question was racing in the ultralight category, so I'm guessing he went that way for weight savings?  Too lazy to look up the weight difference...

Still, the answer to why in this case is definitely "becuz, that's why"