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Widest tire
- carksz1b
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02 Feb 2023 19:30 - 02 Feb 2023 20:09 #879697
by carksz1b
Widest tire was created by carksz1b
Hello.... I am building a 77 kz1000a, I have a d.i.d wm6 (3.50x18) rear rim and want the widest tire i can fit with out rubbing the chain or brake stay. It had a 130/70-18 on it...
Thanks
Thanks
Last edit: 02 Feb 2023 20:09 by carksz1b.
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- urankjj
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03 Feb 2023 05:20 #879709
by urankjj
Replied by urankjj on topic Widest tire
I was running a 150/70-18 on the same bike and rim, (stock swing arm). It was a bit farther back in the swing arm due to sprocket sizes I believe. But I used to drag race it with low air pressure and had no clearance issues. Here's a comparison site, good luck....
www.tacomaworld.com/tirecalc?tires=130-70r18-150-70r18
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- Wookie58
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03 Feb 2023 05:49 #879712
by Wookie58
Replied by Wookie58 on topic Widest tire
See below, what you go with will depend on what you use the bike for - going too wide on the tyre will potentially be ok in a straight line but may lead to interesting handling characteristics (sidewall flex) through the curves if you are a spirited rider
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- Irish Yobbo
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06 Feb 2023 18:55 #879869
by Irish Yobbo
1981 KZ750 LTD
Replied by Irish Yobbo on topic Widest tire
Just a quick note - a wider tyre doesn't necessarily mean more rubber contacting the ground. If you put a much wider tire on the same rim as a narrower tyre, the wider tyre will have its sides pulled in more and give a pointier profile.
The same tyre on a wider rim will result in a larger contact patch as it 'spreads out' the tire giving a flatter profile.
I'd recommend sticking pretty close to stock - wider tyres on the same rim will usually not give better grip, but will give worse handling. If you're truly after more grip, changing to a wider rim with a tyre to match is the best way to go. If you don't want to change your rim, just get the stickiest tyre you can get.
The same tyre on a wider rim will result in a larger contact patch as it 'spreads out' the tire giving a flatter profile.
I'd recommend sticking pretty close to stock - wider tyres on the same rim will usually not give better grip, but will give worse handling. If you're truly after more grip, changing to a wider rim with a tyre to match is the best way to go. If you don't want to change your rim, just get the stickiest tyre you can get.
1981 KZ750 LTD
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07 Feb 2023 19:18 #879893
by carksz1b
Replied by carksz1b on topic Widest tire
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- slmjim+Z1BEBE
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09 Feb 2023 03:53 #879929
by slmjim+Z1BEBE
A biker looks at your engine and chrome.
A Rider looks at your odometer and tags.
1973 ('72 builds) Z1 x2
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk x2
2009 ST1300A
www.kawasaki-z-classik.com
An enthusiast's forum focused exclusively
on all things Z1, Z2 and KZ900.
Replied by slmjim+Z1BEBE on topic Widest tire
Note that all tires marked as the same size vary somewhat in physical size (width & circumference) between manufacturers. If a 130 tire from one manufacturer clears the hard bits by a few mm, a 130 tire from a different manufacturer might rub the hard bits or, might offer more clearance.
Irish Yobo is spot-on with the description of the disadvantages of a tire too wide for a rim. Tire width & rim width go hand in hand. Tire manufacturers will state recommended rim widths for their their tire are designed.
Good Ridin'
slmjim & Z1BEBE
Irish Yobo is spot-on with the description of the disadvantages of a tire too wide for a rim. Tire width & rim width go hand in hand. Tire manufacturers will state recommended rim widths for their their tire are designed.
Good Ridin'
slmjim & Z1BEBE
A biker looks at your engine and chrome.
A Rider looks at your odometer and tags.
1973 ('72 builds) Z1 x2
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk x2
2009 ST1300A
www.kawasaki-z-classik.com
An enthusiast's forum focused exclusively
on all things Z1, Z2 and KZ900.
Please Log in or Create an account to join the conversation.