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Post by biglt on Sept 30, 2013 23:45:59 GMT
On my Katana I have a set of good rf900 forks that I've polished up and fitted, but they're going to be too short. They're 700mm. The difference between these and standard ones is about 100mm. I'm using 17'' wheels, so that'll make a difference too.
I spent ages making/modifying a new top yoke, but reluctantly it looks like I'm going to have to use an offset one or use different forks (which I don't want to do). A very nice man has said he can make an offset top yoke for me. I'm guessing I can't go more than about 50mm with that.
I'd usually just fit it all together and see, but I can't do that properly without the expense of having yokes made.
Anyone done this before or have experience of something similar? All help appreciated.
Liam
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Post by slim on Oct 1, 2013 11:13:39 GMT
i did this a few years ago & at first used 2 bandit top yokes welded together to make a stepped top yoke which got about half the differance back, i also setup the rear end slightly lower so the bike sat almost level with the floor & the only problem i had was slightly reduced ground clearance
I later swapped the RF forks for bandit 12 & re set the rear end to a stock ish height & all was well, personally i much prefered it with the bandit front end but only because of the ground clearance
the only other option i can see is to swap forks or slug the Rf ones by 50mm & weld up a yoke as above
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Post by biglt on Oct 1, 2013 11:44:53 GMT
I hadn't thought about welding two yokes together. I have been keeoing an eye out for a complete cheap bandit front end, but I haven't seen any I'd consider, and its extra hassle and time. I've got a USD front end, but I want to keep a more retro look with decent quality suspension. I quite like the idea/look of offset yokes and to be honest, by the time I've spent time/money picking them up, cleaning them up etc the cost is not that dissimilar.... I just don't want to waste money finding out it won't work.
Got me thinking again now - Bandit 1200 forks are 43mm right?
Thanks for your help
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Post by captain chaos on Oct 1, 2013 13:14:09 GMT
Bandit 1200 forks are 43mm right? right
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Post by pedda on Oct 1, 2013 17:10:32 GMT
Got a mate who took some RF 990 forks with self made stepped yokes for his race Kat. Dunno if I have any pics. I'll trawl through my files...
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Post by pedda on Oct 1, 2013 17:23:46 GMT
Let's see if that works...
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Post by kiwi on Oct 1, 2013 17:38:14 GMT
pedda i think you'll find he's on about RWU Forks.
And biglt i have rf9 in the front of my Kat, but they have extensions fitted to them very easy, there's a right up on KOC.
But dependant on how soon you need them as putting USD's on front of mine over winter.
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Post by bigyellowthing on Oct 1, 2013 19:16:36 GMT
I have gsx 750 w - inazuma forks with ohlins springs in GSXR slabby yokes and a 17" 120/60 tyre. The rear end is a slabby (88?) swing arm with ohlins 36P shocks, 17 x 4.5 rim and a 160/60 tyre.
I ride reasonably quickly but very rarely run out of ground clearance. If you are going to try and keep up with modern sports bikes then you might need to address the length of the forks. Having said that I am contemplating jacking up the back to get some more weight on the front to sharpen the steering and lessen the understeer when 'pressing on'.
The nett result is the rear tyre is perilously close to the edge of the tread when the engine bars touch down.
Hope this helps.
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Post by bigyellowthing on Oct 1, 2013 19:17:20 GMT
Sorry in my GSX1100ET
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Post by biglt on Oct 1, 2013 23:27:56 GMT
Thanks everyone for all this info. I found some decent Bandit forks today. Seems like cheating though...
I'll sleep on it now you've given me more ideas.
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Post by captain chaos on Oct 2, 2013 10:59:06 GMT
Pedda, more pics needed
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Post by pedda on Oct 2, 2013 20:50:55 GMT
Thy will be done. Here's said bike in action. Me observing the scene from behind. ...guess you wanted some more pics of the bird, eh?
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Post by pedda on Oct 2, 2013 20:52:12 GMT
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Post by biglt on Oct 3, 2013 8:02:30 GMT
Like the bottom photo - shame about all those blokes hanging around in the background and spoiling it though!
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Post by bluedog59 on Oct 10, 2013 17:20:35 GMT
If the fork lowers don't have any adjusters in them it is possible to fit a spacer under the damper assembly and a longer damper retaining bolt. I wouldn't go more than about 25mm but it's a start. Have you looked under the top yoke to see if it's possible to thin any of the locking nuts etc to lower the yoke and maybe even take a few mm off the underside of the yoke ? If you could lose 5mm, that would make 30% of the total already.
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