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TOPIC: largest size tire for stock kz 1000?

largest size tire for stock kz 1000? 3 years 8 months ago #430925

i have a 78 kz1000a and want to know what the widest tire i could put on the rear. i believe it has a 130/?/16 on rear.
Thanks in advance
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largest size tire for stock kz 1000? 3 years 8 months ago #430926

  • racer54
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I run a 130/18 on a 3.5" rim but I know some have squeezed a 140 tire in there. Of course it depends on if you are keeping it stock or not. Stock swingarm and a 140 is about the biggest you can go. Put on a GS1100 arm and that goes up to about a 160 (I think). Aftermarket arms can fit up to a 200 tire but with a LOT of extra work to get it to work. You don't want to put a 130+ tire on a stock rim though. It might fit but wouldn't be a good thing to do.
1980 LTD (changed over the years), 1979 LTD (being rebuilt), 1977 KZ turbo and various KZ's in various states of build. KLX110
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largest size tire for stock kz 1000? 3 years 8 months ago #433061

  • mtbspeedfreak
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I'm running a 130/15 (I'll double check the exact size tomorrow) with a stock swingarm.

I only have a millimeter or less clearence (it's CRAZY tight) between the tire and the brake drum "tie-rod" bar.
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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largest size tire for stock kz 1000? 3 years 8 months ago #433064

  • trianglelaguna
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120/4.00

chain guard and everything stock...no chain guard 130mm

more fidgin around and moving the axle and longer chain links ect..140-150...changes the profile though...130 safest
1976 KZ900 A4 38 years and counting
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largest size tire for stock kz 1000? 3 years 5 months ago #449143

  • hotrods316
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so the 5.5"X 16" rear slick by M&H is a nogo for the stock wheel? I was trying to figure if I could squeeze that slick on the rear wheel or not. Thanks
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largest size tire for stock kz 1000? 3 years 5 months ago #449145

  • wireman
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the 5.5" is the contact patch of the tire,sidewall puts it close to 6".
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.
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largest size tire for stock kz 1000? 3 years 5 months ago #449172

  • andy9802gt
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Yeah that's a no go. Unless you're building a big block dragbike there's no need for a slick. I can leave pretty hard on mine with street tires without losing traction.
'78 KZ1075 LTD
stage 1 head by Larry Cavanaugh
race built crank by John Pearson
Mikuni rs34's
k410 cams
back cut tranny
8" over D&G swinger
proving once again that age and treachery is better than youth and enthusiasm
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largest size tire for stock kz 1000? 3 years 5 months ago #449226

  • hotrods316
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Cool. Thanks guys. I am definately not building a big block, just saw some z1000's at the dragstrip and looked like they had a slick on their stock rim and wanted to know if it could be done. I just love the look of a drag bike and was curious if I could slap a slick on my rim for s@#t's and giggles at bike night.

Thanks
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largest size tire for stock kz 1000? 3 years 5 months ago #449228

  • wireman
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they used to make slicks in the 4-4.5" range,but i havent seen a new one in a lot of years B)
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.
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largest size tire for stock kz 1000? 3 years 5 months ago #449247

  • racer54
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The small M/T slick...5.5"...has been used on a stock rim many times. Better to use on a WM6 rim (3.5" wide) but guys have run them on a stock rim. This slick replaced the smaller RR slick they used to use on a stock rim. Has a tendency to round tire off because of the skinnier rim width but it has been done and worked well on the lower HP bikes. If any doubts, ask some of the racers at your local track. I'm sure there is at least one who knows something about this tire on a stock rim.
1980 LTD (changed over the years), 1979 LTD (being rebuilt), 1977 KZ turbo and various KZ's in various states of build. KLX110
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largest size tire for stock kz 1000? 3 years 5 months ago #449791

  • badrhino
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I have a 140 on a 3 inch rim and there is room.
1980 KZ1000 with a 1982 KZ1000J motor with 1100 pistons and heads, Vance & Hines, 29MM Smooth Bores, Work in Progress
Franken Z!
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