Rear 18" Mag wheel question

  • mtbspeedfreak
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31 Jan 2012 18:45 #501137 by mtbspeedfreak
Rear 18" Mag wheel question was created by mtbspeedfreak
I remember reading somewhere that there were two widths for a rear 18" mag. The "standard" 2.15" and something wider, maybe a 2.5"? Can anyone shed any more light on this? Did the wider rim come on a cop bike?

Thanks,
Mark
2000 ZRX 1100
1976 KZ 900- Daily Driver
1980 LTD 550- Dalton Highway survivor!

If it has tits or tires, it'll give you problems!

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31 Jan 2012 19:38 - 19 Feb 2013 12:53 #501147 by martin_csr
Replied by martin_csr on topic -
.
1981 KZ650 Competition Sports and Road
Last edit: 19 Feb 2013 12:53 by martin_csr.

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01 Feb 2012 02:01 #501247 by 893cv
Replied by 893cv on topic Rear 18" Mag wheel question
Mark,

I am using a mid 80's police 18x2.5 in rear wheel on my project 1980 KZ1000 B4. The axle is the same 20mm OD. I will have to make a mount for a modern caliper and some spacers. I will post photos when I am done.

Jon
1980 kz1000 LTD
1978 Z1R

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  • mtbspeedfreak
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01 Feb 2012 18:02 #501375 by mtbspeedfreak
Replied by mtbspeedfreak on topic Rear 18" Mag wheel question
Ok, thanks! Brian has a Z1R 2.15" wheel that I'm interested in. I'm starting a build soon and need a wider 18" rear mag so I can put on a wider, sticker tire. (Ditching the stock swingarm, of course)

Jon, it'd be great to see a picture of your cop wheel. Does it look different than the normal Enkei's?
2000 ZRX 1100
1976 KZ 900- Daily Driver
1980 LTD 550- Dalton Highway survivor!

If it has tits or tires, it'll give you problems!

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  • DoubleDub
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01 Feb 2012 18:12 #501379 by DoubleDub
Replied by DoubleDub on topic Rear 18" Mag wheel question
Also curious! :)

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02 Feb 2012 17:20 - 02 Feb 2012 17:22 #501565 by 893cv
Replied by 893cv on topic Rear 18" Mag wheel question

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This is a photo of the police wheel, ZRX shocks, and Zephyr arm on my 1980 B4.

I have also included a photo of the clutch cover and ignition housing, and a photo of the YZF600r forks I am using with R1 monoblock calipers and a stock front wheel, and a photo of the YZF600r taillight mod, and a photo of the police tank, billit fuel cap, bar mounts, and triple clamp I am using.
1980 kz1000 LTD
1978 Z1R
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Last edit: 02 Feb 2012 17:22 by 893cv. Reason: More Info!

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  • mtbspeedfreak
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02 Feb 2012 17:39 #501568 by mtbspeedfreak
Replied by mtbspeedfreak on topic Rear 18" Mag wheel question
Looks good! Are you using a cop front wheel also? What size is your rear tire?
2000 ZRX 1100
1976 KZ 900- Daily Driver
1980 LTD 550- Dalton Highway survivor!

If it has tits or tires, it'll give you problems!

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02 Feb 2012 18:33 #501578 by 893cv
Replied by 893cv on topic Rear 18" Mag wheel question
The front wheel is a stock 2.15/19 1980 KZ1000 B4 with a 100/90-19 tire, the rear tire is a 130/80-18, both are the new Conti "GO".
1980 kz1000 LTD
1978 Z1R

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02 Feb 2012 19:07 #501586 by mtbspeedfreak
Replied by mtbspeedfreak on topic Rear 18" Mag wheel question
Do you know what year of cop rear wheel you had? Those are the same tire sizes as I have on my bike with 2.15" rear and stock swingarm.
2000 ZRX 1100
1976 KZ 900- Daily Driver
1980 LTD 550- Dalton Highway survivor!

If it has tits or tires, it'll give you problems!

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02 Feb 2012 20:20 #501599 by 893cv
Replied by 893cv on topic Rear 18" Mag wheel question
The wheel is from an 84, but they used the same part from 1981 till 1993. I used the Conti webite when I orderd those tires. I always try to use the recomended tire size, and a 2.5in wide rim is the smallest recomended for the 130/80-18 tire. Handeling is more important to me then looks.
1980 kz1000 LTD
1978 Z1R

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02 Feb 2012 22:05 #501632 by notaduc
Replied by notaduc on topic Rear 18" Mag wheel question
I have the 2.5 rim and am going for a 120 tire as it falls in the middle of the recommended range.
1980 (mostly) KZ1000

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29 Mar 2012 21:07 - 29 Mar 2012 21:09 #512893 by mjg15
Replied by mjg15 on topic Rear 18" Mag wheel question

I used an '86 police rear wheel on my GPz550. In the pics it has 120/80-18 Avon AM26. You could probably use a 130, but the 120 was already 10mm wider than the stock 550 tire. The rim is also approx 10mm wider than the stock 2.15. The wheels seem identical, except for the added width of the outer rim. The cush drive and rotor from the 550 bolt-up.

The KZ1000 J model and R models probably had the 2.50 also
'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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Last edit: 29 Mar 2012 21:09 by mjg15.

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