Can I go up a size in my rear tire?

  • Blockersrule
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27 Jun 2011 15:58 #459723 by Blockersrule
Can I go up a size in my rear tire? was created by Blockersrule
Hey Ya'll. I just purchased a 1982 LTD550. I currently have 130/90 for my rear tire size and it needs to be replaced. My friend has a brand new 140/90. Can I put a size larger on this bike?

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29 Jun 2011 00:24 #460064 by Nebr_Rex
Replied by Nebr_Rex on topic Can I go up a size in my rear tire?
How much is mounting?
2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0


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29 Jun 2011 15:49 #460155 by bountyhunter
Replied by bountyhunter on topic Can I go up a size in my rear tire?
Not sure, a 140 is a pretty fat tire. What is the stock tire size on the bike?
1979 KZ-750 Twin

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29 Jun 2011 20:50 #460186 by gengomerpyle
Replied by gengomerpyle on topic Can I go up a size in my rear tire?
i have a 140 on my 750R1 and it came with a 120 from the factory
1982 GPZ750R1 ELR
1978 Honda CB750F SuperSport
1971 Honda CB750K
1970 Honda CL100 Scrambler

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  • Julian@MotoCARR
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05 Jul 2011 01:31 #461090 by Julian@MotoCARR
Replied by Julian@MotoCARR on topic Can I go up a size in my rear tire?
I'd like to know too as I need a new rear tire aswell. Looks like as is it is pretty close to the chain guard with a 130, but as long as the 140 will mount on the wheel, I'm not worried about clearance because the guard is comin off.
Humans are smart
People are stupid

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05 Jul 2011 02:52 #461100 by bountyhunter
Replied by bountyhunter on topic Can I go up a size in my rear tire?
If you mount a 140 on a rim designed for a 120, it will probably wear the center strip of the tire pretty fast since the narrow rim warps the profile of the tire some. Mine runs a 4.00-18 and I ran a 4.75-18 once and it wore the center faster than normal.
1979 KZ-750 Twin

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05 Jul 2011 10:13 #461112 by Patton
Replied by Patton on topic Can I go up a size in my rear tire?
On Z1, one rear tire size larger (up to 120 from 110) worked well and looked good.

A 130 bulges over the rim like a fat guy's belly wearing too tight pants. :lol:

Good Fortune! :)
1973 Z1
KZ900 LTD

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05 Jul 2011 13:37 #461146 by GPZPDX
Replied by GPZPDX on topic Can I go up a size in my rear tire?
The 140 is much too large for your rim

It will create bad handling characteristics, wear out faster and actually have less rubber on the road

Use the size recommended for your bike
1981 GPZ 550
1978 GS 1000 (x3)
1970 450 Mk IIID

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  • Julian@MotoCARR
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05 Jul 2011 13:52 - 05 Jul 2011 13:52 #461147 by Julian@MotoCARR
Replied by Julian@MotoCARR on topic Can I go up a size in my rear tire?

bountyhunter wrote: If you mount a 140 on a rim designed for a 120, it will probably wear the center strip of the tire pretty fast since the narrow rim warps the profile of the tire some. Mine runs a 4.00-18 and I ran a 4.75-18 once and it wore the center faster than normal.


I guess I should have read the OP more closely. I have a KZ750LTD not 550 like the OP. Totally missed that part LOL
Humans are smart
People are stupid
Last edit: 05 Jul 2011 13:52 by Julian@MotoCARR.

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