ZXR/GSXR brake upgrade

ZX2R, ZXR400, ZXR750, ZX6R, ZX7R, ZX9R & ZX12R & others.
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JimZXR
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ZXR/GSXR brake upgrade

Post by JimZXR »

Have finally given up on the standard ZXR brakes on my track bike so after a bit of research (and a handy bit of advice) I'm seriously considering using the callipers and master cylinder from a K1/K2 GSXR1000 which I'm told, with a bit of persuasion, will bolt up and offer much more braking power!

Any experience or advice?!?

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Strika
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Re: ZXR/GSXR brake upgrade

Post by Strika »

I fitted up a set of K1/2 callipers onto my ZX6R F1 (1995). The bolt holes are the same spacing and the swept area and vertical alignment don't require any spacers. Are the ZXR the same callipers as F1 ZX6 ???
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JimZXR
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Re: ZXR/GSXR brake upgrade

Post by JimZXR »

Not sure but speaking to a few people and looking on a website I usually refer to I believe I'll need to have spacers made but shouldn't be too difficult!
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Re: ZXR/GSXR brake upgrade

Post by JimZXR »

How do you find the brakes now Strika?
Are they the 6 pots?
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Re: ZXR/GSXR brake upgrade

Post by NINJAINOZ »

All the (precise) info you could need right here>

http://homepage.ntlworld.com/webzxr/zxr ... emods.html

http://homepage.ntlworld.com/webzxr/zxr ... brake.html

Some good reading here too>

http://homepage.ntlworld.com/webzxr/zxr750r/

Seems to be a hidden page? I dont know how I originally came across it?>

http://homepage.ntlworld.com/webzxr/zxr750r/Features/
Last edited by NINJAINOZ on Tue Oct 16, 2012 9:26 pm, edited 3 times in total.
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JimZXR
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Re: ZXR/GSXR brake upgrade

Post by JimZXR »

That's the site I was looking at; it's awesome for tips on the ZXR!
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Re: ZXR/GSXR brake upgrade

Post by NINJAINOZ »

I am going to upgrade my ZXR 750 front brakes to ZX7R 6 pot calipers, I just received a pair of calipers today from the USA for $50US along with a lower triple clamp for $25US, I am waiting on a new ZX7R front guard to clear customs, I should have it tomorrow, Then I will hunt up some ZX7R fork tubes & complete the conversion using my stock ZXR 750 top triple clamp, The triple clamp stem bearings are the same so I will just use the later model bearings, Wont take long to change it all over either
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Re: ZXR/GSXR brake upgrade

Post by Daisy »

Most people have difficulty finding the one piece spacers - or someone to make them. On the ZZR1100 we just used a 10x8mm tube and a washer. Make sure you put a washer on the outside as well, as the heads on the m8 bolts are smaller than the original m10. We didn't change the master cylinder.
At one stage we asked an engineer to drill and tap the caliper to take an m10 bolt (so all it would require is a washer) , but he wouldn't touch it. Said it wouldn't leave enough metal.
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Re: ZXR/GSXR brake upgrade

Post by JimZXR »

I've been quoted $150 to have the sleeves made by Extreme Creations but am waiting for a mate to get back to me about doing it!
Have already sourced the M8 high tensile cap screws!
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Re: ZXR/GSXR brake upgrade

Post by NINJAINOZ »

Little bit pricey but Extreme Creations do good work, Any machine shop should be able to make them up for $50 maybe?
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Re: ZXR/GSXR brake upgrade

Post by JimZXR »

Hopefully so; have been quoted $250 for the pair of callipers so all up shouldn't be too expensive an upgrade, so long as the MC's are the same!
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Re: ZXR/GSXR brake upgrade

Post by NINJAINOZ »

Little bit pricey for the calipers, As mentioned I got a set of ZX7R calipers from the USA for $50US for the pair, With a set of EBC HH pads in both calipers with about 90% left on them also, The brake pads are worth more than the calipers here in OZ, The average price in the USA for later model GSXR front calipers is about $40 for a pair, You should be able to find a set of K1/K2 calipers for around the same price?>

http://www.ebay.com/sch/i.html?_odkw=GS ... s&_sacat=0
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Re: ZXR/GSXR brake upgrade

Post by NINJAINOZ »

I should be able to change over my front end to later model ZX7R forks & brakes for around $300 - $400 roughly
Much less after I sell the old parts of course too

With the ZX7 forks you get rebound, compresion, and preload adjustmend. ZXR,s only have preload and rebound adjustment
Last edited by NINJAINOZ on Wed Oct 17, 2012 11:14 am, edited 1 time in total.
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Re: ZXR/GSXR brake upgrade

Post by timmyrocks »

Hey mate if u need anything machined up I have full access to a lathe at work :)

Cheers mate
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Re: ZXR/GSXR brake upgrade

Post by Daisy »

JimZXR wrote:I've been quoted $150 to have the sleeves made by Extreme Creations but am waiting for a mate to get back to me about doing it!
Have already sourced the M8 high tensile cap screws!
Waaay too pricey IMO. We did the whole job - calipers, spacers and braided lines - for a bit over $200.
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