KZ1000 Brake Upgrade?

  • wireman
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Re: KZ1000 Brake Upgrade?

31 May 2011 23:20
#454663
mjg15 wrote: 1000 Police forks/calipers with KZ1300 18x2.15" wheel and 298mm rotors, all stock Kaw parts w/no machining,on a 550. It should stop well


nice looking combination,what year of cop bike front end did you use cop bike triple trees also? B)
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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Re: KZ1000 Brake Upgrade?

31 May 2011 23:37
#454670
The forks, triples, and calipers are from an '86 p bike. Front axle is from a ZG1000 Concours. The spread of the P front end is quite wide, but it is the same as the KZ1300
'80 Z750fx
'81 KZ550A
'81 GPz550's, Too many!
'82 KZ1000R
'82 GPz750
'90 ZR550


Project photo album: s163.photobucket.com/albums/t289/mg15_ph...GPz-ZR550%20project/
s163.photobucket.com/albums/t289/mg15_ph...current=DSC01286.jpg

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  • 79MKII
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Re: KZ1000 Brake Upgrade?

01 Jun 2011 19:22
#454834
mjg15 - how did you get the rotors so clean? Did you have them machined? I'm trying to clean up a set now.
The Kaw List:
Current: 79 KZ1000 A3 MKII, 78 KZ1000 A2, 78 KZ1000 Z1-R, 78 KZ650 SR, 80 KE175
Former: 03 KLX400SR, 99 ZRX1000, 82 KZ750 LTD, 80 KZ1000 A4 MKII, 80 KZ1000 LTD, 78 KZ1000 A2, 74 H-2 750 Triple, 78 KL250

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Re: KZ1000 Brake Upgrade?

01 Jun 2011 19:25
#454835
I have a set of Z1-R rotors and a set of MKII rotors and I can't find a single difference except for the drilled hole pattern. Any idea why EBC would have different part numbers for the Z1-R vs. the MKII? There is also a third part number for the LTD models....just don't understand what could be different. :huh:
The Kaw List:
Current: 79 KZ1000 A3 MKII, 78 KZ1000 A2, 78 KZ1000 Z1-R, 78 KZ650 SR, 80 KE175
Former: 03 KLX400SR, 99 ZRX1000, 82 KZ750 LTD, 80 KZ1000 A4 MKII, 80 KZ1000 LTD, 78 KZ1000 A2, 74 H-2 750 Triple, 78 KL250

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Re: KZ1000 Brake Upgrade?

01 Jun 2011 20:13
#454841
MKII,
IIRC, I probably cleaned them with scotchbrite. Sodablasting works well too, but I didn't have one when I did those wheels/rotors last year.


What is the diameter of the Z1R rotors,and what is the spread between them when mounted on the Z1R wheel? I've been tring to figure out what rotor to use to try to put a Z1R wheel on a 550
'80 Z750fx
'81 KZ550A
'81 GPz550's, Too many!
'82 KZ1000R
'82 GPz750
'90 ZR550


Project photo album: s163.photobucket.com/albums/t289/mg15_ph...GPz-ZR550%20project/
s163.photobucket.com/albums/t289/mg15_ph...current=DSC01286.jpg

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Re: KZ1000 Brake Upgrade?

01 Jun 2011 23:24
#454880
The diameter measures 11 5/8". I pulled the discs off the wheel earlier today so I can't measure the distance between them. I can tell you that the distance between the back side of the rotors when placed together is 1.8525". I measured the width of the hub to be 2.6855. That would give us a calculated distance of 4.538". Does that sound about right?
The Kaw List:
Current: 79 KZ1000 A3 MKII, 78 KZ1000 A2, 78 KZ1000 Z1-R, 78 KZ650 SR, 80 KE175
Former: 03 KLX400SR, 99 ZRX1000, 82 KZ750 LTD, 80 KZ1000 A4 MKII, 80 KZ1000 LTD, 78 KZ1000 A2, 74 H-2 750 Triple, 78 KL250

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Re: KZ1000 Brake Upgrade?

02 Jun 2011 00:36 - 02 Jun 2011 00:39
#454897
Thanks,

The spread sounds close to the 115mm of a 550, but I probably need the 4 bolt 10 1/2" rotors. Maybe they are from a 650 or a CSR1000 ? I've seen a couple pair on ebay, but I've been reluctant to order them because I have enough unusable experimental parts now. At least I now know not to buy Z1R or MKII rotors.

Is your Z1R wheel widened also? If so, did you have do it your self or send it out to someone?
'80 Z750fx
'81 KZ550A
'81 GPz550's, Too many!
'82 KZ1000R
'82 GPz750
'90 ZR550


Project photo album: s163.photobucket.com/albums/t289/mg15_ph...GPz-ZR550%20project/
s163.photobucket.com/albums/t289/mg15_ph...current=DSC01286.jpg
Last edit: 02 Jun 2011 00:39 by mjg15.

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Re: KZ1000 Brake Upgrade?

02 Jun 2011 08:47
#454938
Not sure where exactly the smaller diameter brake discs come from. I haven't had a chance to measure them on my 650 project. I bought a pair supposedly for a 1000 and they are just a bit smaller. I hope to put them on my 650 one day. I'll try to take some measurements and post them.

Yes, front wheel widened to 3.5". I had it done at Kosman Specialties:

www.kosmanspecialties.com/index.html
The Kaw List:
Current: 79 KZ1000 A3 MKII, 78 KZ1000 A2, 78 KZ1000 Z1-R, 78 KZ650 SR, 80 KE175
Former: 03 KLX400SR, 99 ZRX1000, 82 KZ750 LTD, 80 KZ1000 A4 MKII, 80 KZ1000 LTD, 78 KZ1000 A2, 74 H-2 750 Triple, 78 KL250

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Re: KZ1000 Brake Upgrade?

02 Jun 2011 14:25
#454973
79MKII wrote: I have a set of Z1-R rotors and a set of MKII rotors and I can't find a single difference except for the drilled hole pattern. Any idea why EBC would have different part numbers for the Z1-R vs. the MKII? There is also a third part number for the LTD models....just don't understand what could be different. :huh:

Just found out from Jeff at Z1E that the MKII rotor from EBC is 1mm smaller in diameter than the Z1-R rotor. Can't imagine that making any difference?? I'm sure either would work well.

Here's a better picture of the rear rotor. I'd like to keep the same carrier and just bolt on a new rotor. Any idea where I could find something like this? It originally came from Klasmo in Germany and they are out of business.


The Kaw List:
Current: 79 KZ1000 A3 MKII, 78 KZ1000 A2, 78 KZ1000 Z1-R, 78 KZ650 SR, 80 KE175
Former: 03 KLX400SR, 99 ZRX1000, 82 KZ750 LTD, 80 KZ1000 A4 MKII, 80 KZ1000 LTD, 78 KZ1000 A2, 74 H-2 750 Triple, 78 KL250

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Re: KZ1000 Brake Upgrade?

03 Jun 2011 14:34 - 03 Jun 2011 14:37
#455196
Wow, this is getting ugly. I've been working with PMFR on possibly getting a Grimeca set up for the front. The centers for the rotors are normally $85 each, but apparently don't fit a stock KZ wheel (I'm still not sure what they do fit). They offered to make a custom center for me....sounded interesting....then I got the price. They want $260 for EACH center plus another $129 for each rotor, plus $123 each for calipers plus $40 each side for caliper brackets. Well, that's a cool $1104 plus shipping for 2 calipers and 2 10" rotors. Ouch!! If I was going to spend that kind of money I'd have Fish make me a sweet set with 330mm discs and 6 piston calipers.

Looks like I'll put my stock MKII rotors on there or just slap on a new set of EBC rotors. EBC rotors would run over $400 though...not sure if it's worth it for just new rotors.





The Kaw List:
Current: 79 KZ1000 A3 MKII, 78 KZ1000 A2, 78 KZ1000 Z1-R, 78 KZ650 SR, 80 KE175
Former: 03 KLX400SR, 99 ZRX1000, 82 KZ750 LTD, 80 KZ1000 A4 MKII, 80 KZ1000 LTD, 78 KZ1000 A2, 74 H-2 750 Triple, 78 KL250

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Last edit: 03 Jun 2011 14:37 by 79MKII.

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Re: KZ1000 Brake Upgrade?

03 Jun 2011 23:54
#455270
that sucks man.:sick:

it is amazing how quick it all adds up.

leon
skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0

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Re: KZ1000 Brake Upgrade?

04 Jun 2011 09:42
#455318
These calipars are of a ZX7.

Attachment IMG_0883.JPG not found

1 x 77 Z1000
1080,cams,ported
29 smoothbores,
Akron rims,Martin Swingarm
1 x 77 Z1000
1327 Wiseco,cams
ported,34.5 S/bores
GSXR swingarm
RF900 frontend.
1 x 2008 Nightrain
shotgun shock,corbin
seat,fat bars,some bling.
www.kzrider.com/media/kunena/attachments/8119/IMG_0461.JPG

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