V7iii forks and triples into V9

[Tomas0365]

I've been contemplating changing the forks and triples on my V9 to V7 stuff so I can swap in my Racer wheel.  I've noticed the V9 forks, although the same diameter, are set further apart than the V7.  Can anyone enlighten me as to what difference the spread of the forks make. 
I've actually got an opportunity to get the V7 stuff at no cost to me.

[Kev m]

The spread of the forks can effect axle length, wheel spacer size, caliper-to-disc mount relationship, and fender mounting.

[Zoom Zoom]

Have you verified the other triples will fit the V9 frame? (Top to bottom measurement, bearing size?)

If you can obtain for free, get them.

Kev, I would suppose you stated the obvious. I would also say it is very valid. I wondering if there is some advantage/disadvantage with wider spacing, other than the mechanical aspect? Perhaps, as you say, it is simply that and nothing more, IDK.

John Henry

[Muzz]

Kev, I would suppose you stated the obvious. I would also say it is very valid. I wondering if there is some advantage/disadvantage with wider spacing, other than the mechanical aspect? Perhaps, as you say, it is simply that and nothing more, IDK.

John Henry

My gut feeling is that a wider spacing would make for less flex on the sliders as the revolving wheel changes direction.

Don't know whether any of you have stood on a turntable while holding on the axle of a revolving pushbike wheel held vertically, and then tried to tun it to a horizontal position?  It's an interesting exercise, and very difficult to achieve when not standing on a turntable.

[Kev m]

My instinct is to say any difference in performance based on spread alone would be negligible, it's all about cosmetics unless the forks themselves are "better" in some way.

[Tomas0365]

Yeah I have to double check the head stock length etc.  I know the bearings are the same, and the steering head angle of both bikes is the same. 
If I do it I will be swapping everything incl. axle, spacers etc.

Looking at other bikes the fork width is confusing and I suspect on these bikes it is just for asthetics.  For instance Ducatti have widespread forks but Aprilia do not. 

Except for length the forks are the same.