My R1 front end

[Falcon 269]

  What's involved work and part wise and how's it handle?

Very possible and not a difficult DIY job if you're a reasonable spanner-man.

http://fazer1000.yuku.com/topic/3408/R1-...sion-Guide

Luke's bike in the photos uses Gen 2 FZ1 Fazer yokes rather than modded R1 yokes.  Also, he has the forks at original length in the yokes courtesy of extenders he had machined up.  Retaining the standard height this way will leave the bike steering much like the original Fazer, although the slight difference in fork offset may make a small difference to things.   

Fitting shorter R1 legs in R1 yokes really sharpens up the steering and makes the front end much sportier in feel.  I have 5PW forks in mine and really like the way it feels.  Ground clearance hasn't been an issue for me.