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Can't find correct tube for 120/90-16 tire

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21 Jun 2020 08:45 #828578 by ckahleer
Can't find correct tube for 120/90-16 tire was created by ckahleer
I'm about ready to replace the rear tire and tube on my 82 KZ305. 120/90-16.
From my research, tube size should be 4.75. But the tubes I am finding are either 4.25-4.50-16 or 5.00-5.10-16.
Is it better to go with a slightly larger or a slightly smaller inner tube?
I could go to a 130/90-16 rear tire, as there are plenty of tubes for that size, But would rather stick to stock size.
94 KE100
81 CM200t
82 KZ305
85 VF1100c

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  • SWest
  • Offline
  • Sustaining Member
  • 10 22 2014
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21 Jun 2020 09:16 #828583 by SWest
Replied by SWest on topic Can't find correct tube for 120/90-16 tire
Go with the smaller size. Less chance of pinching the tube.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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21 Jun 2020 09:42 #828584 by Mikaw
Replied by Mikaw on topic Can't find correct tube for 120/90-16 tire
This seams to validate Swest’s recommendation for size. Please confirm stem type you need.

www.americanmototire.com/motorcycle-tube...0-16-120-90-16-tr-4/
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.
The following user(s) said Thank You: SWest

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22 Jun 2020 19:48 #828702 by Mikaw
Replied by Mikaw on topic Can't find correct tube for 120/90-16 tire
Found this chart to correctly size a tube to a tire.

www.cb450stuff.com/tire-size-conversion.html
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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