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Discussion Starter #1
Has anyone put zx12r forks on a carby blackbird spec says 43mm am i right in thinking 43mm is only stancions not outer sleeve aswell
 

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Yes, Duck did it, but he's not an ordinary guy, and it was an f.i.
43mm is inner tube diameter, really not the main concern when you have to change steering stem and top clamp anyway.
 

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Like all fork transplants the devil is in the detail.
The fork transplant itself is not a major task, as Partsguy has said you can use forks and clamps.
Things to consider
1. lock stops have to be moved
2. what brakes are you going to use (you need to delink so the rear needs consideration as well)
3. bar clearances
4. ignition barrel fitment (no HISS on carbies so easier)
5. are you going to use a zx12r front wheel?

My first zx12r transplant was carried out with hand tools only, second one took place after I had installed a lathe and mill in my garage.
A few random photos.
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Question
Is it worth the effort?
I gad read on FB of a uk fellow who had done a fireblade transplant of whole front end and it was almost plug and play..
Paul
 

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Discussion Starter #5
Yea just the hayabusa swap is nearly £6-700
By the time you have changed wheel forks calipers disks clamps
 

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Discussion Starter #6
My reason for wanting to change the forks is because my cbr1100 has a front end from a Triumph Speed Triple st955i and the front end feels quite soft and I'm just not happy with the front I have and from what I read on a CBR forum and natural front end of the original forks feels quite soft as well so mine feels soft on the front as well so feels like is the same so I'm thinking of putting a different front end on it something a bit more firmer so I was thinking telescopic Fireblade front end or upside down but the upside down so very expensive when you buy the whole kit
 

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Is it worth the effort?
I read on FB of a uk fellow who had done a fireblade transplant of whole front end and it was almost plug and play..
Depends on what you want, the OE front end can be improved from the suspension point of views (I have andreani cartridges in 'Daily Bird') but if you want to improve the stoppers a fork swap makes life far easier. With my supercharged Bird it was a blank canvas, I bought it as a wreck and the front end (and almost everything else) was destroyed.
On the fireblade front end, yes it is an 'easy' fit but again the devil is in the detail. Blade forks are shorter generally and are sprung/valved for a lighter bike that is also lighter on the front end than the Bird. To get the fireblade front end to work well you need to 'play' with the fork internals and sort out the riding position with fork extenders (not personally a fan) or a custom bar set up.
cbr1100 has a front end from a Triumph Speed Triple st955i and the front end feels quite soft
I've never seen that conversion so can only talk in general terms. Since the conversion is already fitted have you not thought of taking the bike to a suspension specialist for re-springing and new valves? That would be the easiest (and almost certainly cheapest) option and I'm sure a firmer set up could be achieved.

If you do want to carry out a front end conversion then the Busa front end is probably easier than the zx12r if only because more people have carried it out so there is more knowledge of the problems to be overcome. I chose the zx12r forks since there was no length issues and as standard they run a similar spring rate. I ran them in this state before my Mk2 conversion when I stripped the forks down and made some adjustments. The Busa front end is similar, no internal fork work is necessary (possibly spring spacers, I know I made some for adeyren) to get a decent ride.
 

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I just did a cbr954rr swap on mine. Haven't been on the road again yet but it was a pretty simple swap. Not sure if the blade inverted forks are what you are looking for but it was very easy and accomplished my goal.
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