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Uneven Tire Size

Is it okay to use tires of different sizes on heavy vehicles? What are the potential issues that might arise?

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The concern is the drive line system. Pumps, chains, etc. According to the formula for circumference, 2" difference in diameter can result in 3' difference traveled in only 10 revolutions. Would that not create severe stress in the drive line?

NO

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knogen said: NO
No, that I can install new with used. Or No, that it will cause damage to the driveline.

Tazza said: Motor is between wheels with chain to each axle. If one wheel is larger one wheel will be faster than the other.hard on chains.

You are meant to replace tyres one side at a time. When one is larger front or back on the same side, it does put more load on the chains. Over time, they will wear, the hope is that they are rotated enough to keep that wear as even as possible. Working in dirt, it doesn't seem to be an issue, but asphalt or concrete is stickier and puts extra load on the drive train.

kroog said: Tazza said: You are meant to replace tyres one side at a time. When one is larger front or back on the same side, it does put more load on the chains. Over time, they will wear, the hope is that they are rotated enough to keep that wear as even as possible. Working in dirt, it doesn't seem to be an issue, but asphalt or concrete is stickier and puts extra load on the drive train.

You'll tear the snot out of the sprockets and chains. Don't do it. BIG mistake. Keep same size tires on each side.

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