99 Xj600 single swingarm and usd forks recommendations

[Sj.silent]

I'm starting a project where i'm putting a 98 zx6r engine into a 99 xj6 frame. I've already bought the engine and frame, just need to buy swing arm and forks.
Was told by a friend to ask on here to see if anyone would know what single swingarm would fit an xj6 and forks, preferably USD forks.

Thanks

[stinkwheel]

I have no idea. I'm just facinated.

Is there a reason you are going to a huge amount of effort to fit a peaky sportsbike engine into what is generally reckoned to be a bland and boring commuter bike frame?

Why an XJ6?
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[Az]

[P.]

Dis aint Lego. I can't wait till he finds out this won't fit.

[stinkwheel]

[hmmmnz]

you'll have to do a bit of measuring,
dont use the vfr800 swing arm or a speed triple arm. they are pretty wide, i had to do quite alot of machining to get one to fit a zxr750 frame,
the stock xj600 uses a 130 rear wheel, so obviously is a narrow frame,
a vfr400 swing arm is the obvious choice,

front end is no bother compared to the rear,
press out the stem from a xj bottom clamp and press it into your donor forks triple clamps,
i think i used zx10r forks on my 7, but you are just going for looks, so what ever you find cheaply, i'd look for 400cc forks as they are normally a fair bit cheaper to buy than the bigger bikes,

good luck, your gunna need it
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[Kickstart]

Hi

Yamaha are generally fairly good at keeping things standard so swapping bits between them is often remarkably easy.

However, single sided swinging arm will probably be more difficult

All the best

Keith
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[Nope.]

Can't wait for the "Gave up and stuck it on ebay" post in about a months time when he realises this is going to be one hell of a project which will just result in what will likely be a rather dangerous contraption in need of an MSVA.

Jesus, I had a GSXR frame (With V5) you could have had for nothing a couple of months ago. Plenty of frames around for free, most people can't shift them. You can probably get a ZX6R frame for next to nothing if you look hard enough!
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[temeluchus]

[stinkwheel]

Wether it will physically fit in the frame notwithstanding. I suspect the biggest hurdle to overcome on this project will be the chain alignment. The XJ motor is a very upright motor and the final drive shaft is unusually high up.

Getting the ZX6 motor in the frame is probably going to result in the final drive shaft being lower down than the swingarm pivot making it impossible to maintain an even chain tension as the suspension moves.

I'd be getting that engine mocked up in the frame before I even thought about doing anything else. If you achieve this, running gear will be childs-play.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[c_dug]

I have to admit if you could get the engine in and keep it looking pretty standard it would be quite a decent sleeper.

Still seems a strange mix of bikes.
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[MarJay]

Either you're a mechanical genius and playing your cards very close to your chest, or you're a foolish dreamer who has no idea about Engineering.

Either way, allow me to assist you:

https://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=281234507354&clk_rvr_id=567485223713&item=281234507354&lgeo=1&clk_rvr_id=567485223713&vectorid=229508

{edit} Wait... you're embarking on a project without knowing if the swinging arm and forks will fit? I think my brain just glossed over that part... The swinging arm in the link above probably won't fit without machining, but most things can be made to fit. However, without ANY precedent to work out if something is possible it is a huge task to build a special like this. I'd personally start with a standard XJ6 and then try swapping the forks, then the swinging arm and try the engine last. But I have to say, you can't knock your ambition! {edit}
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Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[davebike]

Yes real hard job

I bet it will be a blast to insure

Dave
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[kestrel]

The XJ600 swingarm pivot width is 220mm including the caps. There are plenty of swingarms that will fit and a lot more that can be made to fit with minimal work. Remember that as well as the pivot tube length you also need to consider the pivot shaft, spacer tube and bearing sizes.
Search the XJ Rider forum for a thread 'various motorcycle swingarm pivot widths' I've done plenty of frame/swingarm swaps in the past, some are easier than others but very few are impossible.
As far as the fork change is concerned, by far the easiest way is to change the complete front end.
Good luck with the project!
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[sidewinder]

These guys do lots of divvy mods on here r1 front ends etc

https://www.xjrider.com/

[MarJay]

[chris-red]

Stiffer forks, heavier(?) more powerful engine and a single sided rear arm.

First the frame will flex like a bastard. Secondly bike companies spend millions on labs and very clever people with years of training to research frame geometry, and I'm sure many other important facets of bike design. You think you can build something vaguely rideable by ebaying parts that might fit and designing it on the back of a fag packet?
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[MarJay]

[stinkwheel]

[kestrel]

It's is possible to build a good looking one off bike from ebay parts but you'll very quickly learn that very few major components from different bikes will simply slot together. They can often be made to fit but the cost of doing so can and often does quickly spiral out of control.
Anyone embarking on a custom build should first assess their own abilities and resources. If you have to pay for welding/fabrication and machine shop work at around £30 per hour it's going to get expensive. For every good looking completed custom build there are probably another 20 or 30 incomplete ones rusting away in gardens around the country or going for peanuts on ebay.

As an example, I recently fitted a GPZ550 swingarm into an XS650 frame as part of a monoshock conversion. Fitting the swingarm involved machining some material off the pivot tube and also off the frame bosses and machining a custom fit bearing spacer tube. The actual machining takes very little time but involves a considerable amount of setup time. If you're doing a job like this for yourself where your own time is free then it costs you nothing, paying someone else could easily cost around £200.
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[almostthere]

can't see how you're gonna mount the engine there arent any lower engine mounts on that thing
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[Az]

After the OP saw negative comments, he got all butt sore and said he wasn't coming back to the forum

I'll keep u all updated anyway, just got off the phone with him and he said the frame arrives on friday.

[MarJay]

[Az]

[Az]