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TOPIC: Help ID vintage solid wheels

Help ID vintage solid wheels 01 Oct 2011 22:30 #480850

  • hal0tw0
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Hey guys, I wanted to pick you brains about a cool wheelset I saw today. My friend picked up a 75Z1 project in a box and he had some great extras too. Frame is powdercoated, 3" extended custom swingarm. Keihin fcr carbs, 18" wire wheels front and back, 3 seats, Yosh exhaust, etc....lots of coos stuff. Anyways, he shows me an extra set of wheels Ive seen in pics but never in person. They look like old drag racer era parts. The wheels are solid, look like they were spun. The front wheel is 19" has dual KZ rotors, looks dished or concave and is maybe 2" wide. The rear is about 4" wide, 18" with a 140 tire on it, and it looks convexed to a kz disc rear. The swingarm is a custom boxed piece, chromed, and has axle ajustments in the 19.5 to 21.5 range, so its overall like 23". I didnt take pics cause it was dark and my cell phone sux but Ill go back and get some soon.

Here are some imagaes I googled but kinda look like it. No they are like fatboy rims either. These are definitely old school by their patina.

Front wheel kinda looks like this


and the rear kinda looks like this


Any help would be appreciated. ;)
1976 KA900. VM28 pumper carbs, K&N pod fiters, RC performace 4/1 exhaust, Dyna ignition, Accel coils and wires, Ohlins rear shocks.....more to come

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Last edit: by hal0tw0.

Help ID vintage solid wheels 01 Oct 2011 23:01 #480856

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Help ID vintage solid wheels 01 Oct 2011 23:11 #480858

  • hal0tw0
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That name came up too but is there a way to ID them as Kosman? a stamping anywhere i should check? Are they worth anything? :)
1976 KA900. VM28 pumper carbs, K&N pod fiters, RC performace 4/1 exhaust, Dyna ignition, Accel coils and wires, Ohlins rear shocks.....more to come

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Help ID vintage solid wheels 01 Oct 2011 23:21 #480863

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A picture would sure help. Kosman just came to mind. If there like that there worth some bucks. 2-300 each id guess. Someone will let you know soon. Im guessing

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Help ID vintage solid wheels 02 Oct 2011 00:27 #480876

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performance machine,kosman,mitchell...........
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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Help ID vintage solid wheels 02 Oct 2011 17:36 #481008

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Those look like the original Mitchell Performance Machine wheels when they used to buy stampings and fabricate wheels. This is before they started cutting spoke patterns, guessing late 70's to mid 80's. I'll bet you can still buy sprockets and carriers to bolt up to that 6 bolt pattern.
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Help ID vintage solid wheels 02 Oct 2011 18:33 #481014

  • hal0tw0
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Thanks Jack, Those pics are just ones I googled. Ill take real pics soon this week.
And thanks for help guys ;)
1976 KA900. VM28 pumper carbs, K&N pod fiters, RC performace 4/1 exhaust, Dyna ignition, Accel coils and wires, Ohlins rear shocks.....more to come

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Help ID vintage solid wheels 12 Oct 2011 23:15 #482845

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So I finally got the wheels and my friend is letting my "borrow" them to mock up on my bike. Im excited the more I look at them. They make the bike look "chunkier" if that makes any sense...Im kinda diggin it just by standing the parts next to the bike.
The swingarm is boxed steel, chromed, and appears to measure out stock length wise, it has a 140 tire on it but I might be able to fit a 150/160.
I could work out a barter for them so I may just keep them :P
I can honestly say Ive never seen a set like this in person and I think it works cause its period correct in a way.
Let me know your opinions....good or bad ;)

1976 KA900. VM28 pumper carbs, K&N pod fiters, RC performace 4/1 exhaust, Dyna ignition, Accel coils and wires, Ohlins rear shocks.....more to come

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Help ID vintage solid wheels 12 Oct 2011 23:31 #482852

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I love em. have seen the rear (or similar) on ebay but I would think the front one is a first. Makes me wish I had the front and a 5.5" rear
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Help ID vintage solid wheels 13 Oct 2011 00:39 #482864

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those wheels are very unsafe if you ever find yourself caught in a cross wind you can find yourself several lanes over from where you started with no easy way to steer out of it.
picture walking down a highway carrying a sheet of plywood beside you and having a semi pass,basically same affect especially on front wheel B)
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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Help ID vintage solid wheels 13 Oct 2011 00:52 #482867

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Ive thought of that too, trust me. Having no experience riding a bike with solid wheels, I wonder how the HD fatbobs track with their solid wheels.
Good Observation wireman
1976 KA900. VM28 pumper carbs, K&N pod fiters, RC performace 4/1 exhaust, Dyna ignition, Accel coils and wires, Ohlins rear shocks.....more to come

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Help ID vintage solid wheels 13 Oct 2011 01:05 #482868

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i somehow managed to survive the 80s when that stuff was the "in thing"! :woohoo: ive got a barn full of cast off retro metal flake stuff from 70s-80s! :sick: :laugh:
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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Help ID vintage solid wheels 13 Oct 2011 09:19 #482901

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Attachment Tractorwheel.jpg not found



Attachment tractor.jpg not found

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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Help ID vintage solid wheels 13 Oct 2011 09:52 #482906

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I can't say I like the look - I'm kinda biased to the original wire spoke wheels.

You have to be careful with some of the racing wheels, they are not designed to take a pounding on the street. Hitting a pothole coould ruin your day.

Many years ago I ran a set of cast SMAC mag racing wheels on a street Z1 - and cracked the spokes hitting a curb at speed - scary to find 2 of 6 spokes cracked through.
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Help ID vintage solid wheels 13 Oct 2011 10:06 #482908

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650ed wrote:

Attachment Tractorwheel.jpg not found



Attachment tractor.jpg not found


:laugh: :laugh: :laugh: :laugh:
1976 KA900. VM28 pumper carbs, K&N pod fiters, RC performace 4/1 exhaust, Dyna ignition, Accel coils and wires, Ohlins rear shocks.....more to come

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Help ID vintage solid wheels 13 Oct 2011 10:15 #482910

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hal0tw0 wrote: So I finally got the wheels and my friend is letting my "borrow" them to mock up on my bike. Im excited the more I look at them. They make the bike look "chunkier" if that makes any sense...Im kinda diggin it just by standing the parts next to the bike.
The swingarm is boxed steel, chromed, and appears to measure out stock length wise, it has a 140 tire on it but I might be able to fit a 150/160.
I could work out a barter for them so I may just keep them :P
I can honestly say Ive never seen a set like this in person and I think it works cause its period correct in a way.
Let me know your opinions....good or bad ;)

Looking like they are not 2 piece rims. With a Kosman hub that used 8 holes for sprocket and 4 for disc.
They do have street tires on them!!!
The CCI rims with Kosman hubs were for drag slicks. We used to call them tinfoil rims.
Very thin, had to mount slicks very carefully.
They look street worthy. Imagine all polished fresh and shiny.
I would use them.
I would like them :evil: :woohoo:
Livin in "CheektaVegas, NY
Still have a Kaw! 76 KZ900 Pro-Street.
Went thru 25 of these in 40 yrs.

And The Old Girl, Harley 75 FLH Electra Glide,
Old faithful! Points ign. Bendix Orig. carb.
Starts everytime!

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Help ID vintage solid wheels 13 Oct 2011 10:38 #482911

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I am working with these on 2 different projects.
It is all for sale! One sale!

Attachment als.JPG not found



Livin in "CheektaVegas, NY
Still have a Kaw! 76 KZ900 Pro-Street.
Went thru 25 of these in 40 yrs.

And The Old Girl, Harley 75 FLH Electra Glide,
Old faithful! Points ign. Bendix Orig. carb.
Starts everytime!

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Help ID vintage solid wheels 13 Oct 2011 13:14 #482941

  • 531blackbanshee
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i have a buddy with a fat boy that has solid rims.
he says he doesn't notice side winds pushing him around.
i also have a friend that has an ultra classic (h-d bagger) that has fat boy wheels and he would not keep up on a ride.when we stopped he said he thought he was getting a flat because his bike was moving around so much.no flat but it was windy.

i recently bought these wheels for the blue z1r they are pm wheels,they are pretty thick tho.






they are spun out (kinda like a dish pan)then fit together and welded down the inside where the spokes normally go.

leon
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Help ID vintage solid wheels 13 Oct 2011 13:23 #482943

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Leon,that's exactly how PM manufactured wheels- they originally bought spun aluminum blanks from Mitchell, welded them together and added disc or sprocket carriers. They started doing cutout machining to reduce weight when the wheels became popular for dragracing and also as they had the cnc machines to do it. Some wheels are fine for street use, some like the ultra lites are not. A very good friend of mine was the shop manager at PM for years and years...
79 KZ 1075 MKll
79 KZ 1500 MKll dragbike
Gone but not forgotten:
3 X 73 Z1's
1 X 74 Z1A
1 X 75 Z1B
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Help ID vintage solid wheels 13 Oct 2011 13:34 #482944

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1973 Z1
KZ900 LTD
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