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Running 27x1” tires on 27x1 1/4” wheels

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Running 27x1” tires on 27x1 1/4” wheels

Old 09-24-20, 09:56 AM
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EamonPVD
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Running 27x1” tires on 27x1 1/4” wheels

Would you do it?
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Old 09-24-20, 10:22 AM
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Are you saying your wheel inside width is about 32mm wide? Or do you have a wheel that has a 27x1¼ tire on it and mistakenly think that means anything for the question you ask?

Without knowing the inside width of your rim, preferably in millimeters, then we'd really be guessing. Sometimes that is on your wheel rim somewhere or maybe with the model number of your rim and some searching we'd know.
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Old 09-24-20, 11:28 AM
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mmm no im saying the tires i want to throw on these old 27x 1 1/4” rims are slightly more narrow because they are 27x1” tires. The inside rim width is more like 17mm


[Q
UOTE=Iride01;21711349]Are you saying your wheel inside width is about 32mm wide? Or do you have a wheel that has a 27x1¼ tire on it and mistakenly think that means anything for the question you ask?

Without knowing the inside width of your rim, preferably in millimeters, then we'd really be guessing. Sometimes that is on your wheel rim somewhere or maybe with the model number of your rim and some searching we'd know.[/QUOTE]
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Old 09-24-20, 11:33 AM
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I can't imagine any problem.
ASSUMING hooked rims, because you will have to run higher pressure to avoid pinch flats.
Harsher ride.
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Old 09-24-20, 11:36 AM
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Sure. If they're steel rims without bead hooks, I would be wary of trying to achieve the maximum pressure that a 1" tire would have on its sidewall, but apart from that you should be fine.
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Old 09-24-20, 11:40 AM
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Great thanks for the input
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Old 09-24-20, 11:43 AM
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Originally Posted by ThermionicScott
Sure. If they're steel rims without bead hooks, I would be wary of trying to achieve the maximum pressure that a 1" tire would have on its sidewall, but apart from that you should be fine.
The only way to know for sure is to put 'em on, and press 'em up until the bead blows off with a load explosion. Then remount with a new tube and use a little less pressure.
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Old 09-24-20, 12:09 PM
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Originally Posted by DiabloScott
The only way to know for sure is to put 'em on, and press 'em up until the bead blows off with a load explosion. Then remount with a new tube and use a little less pressure.
Yep! I recommend earplugs.
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Old 09-24-20, 12:34 PM
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I would be worried of problems if the rim is wider than the tire when mounted, but that is unlikely. As long as the tires are at least as wide as the rims (preferably a bit wider) then you are good to go.
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