uprating your zxr400 forks

Wheels, shocks, forks, frame
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the-elf
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Post by the-elf »

Mat,

The RWU forks could well be a good choice, I'm sure Kaze will spread some light on it.

The USD forks do look nice though and are abit stiffer. Just been browsing Ebay and there are a pair of R7 onlins forks there which look sexy as hell.

In the end you all you really need is a good set of fully adjustable cartridge type forks, Its your budget and engineering skills which will ultimatly limit what you can fit. :D
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Red Devil 777
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Post by Red Devil 777 »

Doesn't Janbros use rwu zxr750 forks as well?
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JanBros
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Post by JanBros »

Red Devil 777 wrote:Doesn't Janbros use rwu zxr750 forks as well?
jep, and very happy with them 8)

they are 43mm, so you need the yokes and handlebars to. calipers are the same, but discs are 310mm (and that's a big improvement, it's much easier to brake hard, 'cause you have to use less force). I use a ZXR wheel , 'cause when I made the change, my hole front was crashed.

what to do :

* length off the stem is ok, top bearring is the same as KR1, but the bottom one is bigger, so I putted in a lath and made it the same length all the way (like a Kr1)

* 750 springs are way too hard, and a bit shorter than KR's. I just cut off a bit off the soft part off a KR spring to make it the same length as the ZXR's, and they go straight in, even though the ZXR has a slightly bigger diameter. and you gaine a bit stiffness 8)

only the outgoing damping is adjustable, but it's definitly an improvement, and since nobody is after them "for the looks", should be found reasonably cheap.
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SHimmer45
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Post by SHimmer45 »

speaking of which

ZXR 750 Forks
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corky
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Post by corky »

sent my forks to k-tech and got them back today :D ..... mmmh :D ..went for the full monty so they should be like new... :D
will get them in asap,

got my new dunlop a10s as well gone down from 120/60 frt 160 rear,
to 110/70 and 150/60 rear
hopefully this will be noticable in the handling....
kr1s project wanted
aprillia rs125 track bike
03 r6 race/trackbike
dr500 flat tracker project
plus a few more......x7,kdx125 etc
Professor
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valving kit

Post by Professor »

I've just got the K-Tech 20SSK piston kit fitted in my ZXR 400 L forks on my KR1S

After a short ride they seem a little over damped so I'll try revalving them soon

I'm using 2.5w 118mm oil level with 0.8 springs liniar


How did you get on with your's Corky?

Anyone have a good shim stack setting?
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Bikemike
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Post by Bikemike »

Zombie thread alert!
I'm not sure Corky still frequents the forum, or even if he still has his KR-1s.
Would be nice to hear from him.
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Charles
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Post by Charles »

Bikemike wrote:Zombie thread alert!
I'm not sure Corky still frequents the forum, or even if he still has his KR-1s.
Would be nice to hear from him.
He sold his KR1S a few years ago to Bruce, who's based in the USA.....

He's racing an R6 now.

Charles
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