Tires sizes, Can I change

[tleeburks]

I have a 2000 Ford F150 with 255 70 r16 on it. I found some tires on craiglists with good rims. They are 235 70 r16's. Can I put these on the vehicle? What are the risk etc? Thanks

[Torch]

Here is a link for figuring out what the tire code on the side of your tire means: http://www.tirerack.com/tires/tirete....jsp?techid=46

But to answer your question...

235mm = approx 9.2 inches.
255mm = approx 10.0 inches.

So you are dealing with a difference of 0.8 inches which is just over 3/4 of an inch, that might be enough to cause some bead sealing problems, but since they are coming with their own rims that won't be a problem.

Something that may cause you problems (if you have driven this truck for a long time) is that the wider the tire is the more grip is has to the road surface and the better handling you will get in corners (to a point) you may feel the 3/4 inch difference or you may not it will depend on your driving style and how well your truck handled in the first place.

[tleeburks]

thanks torch, its for my son's truck and you know how teenagers are. thanks again.

Originally Posted by Torch

Here is a link for figuring out what the tire code on the side of your tire means: http://www.tirerack.com/tires/tirete....jsp?techid=46

But to answer your question...

235mm = approx 9.2 inches.
255mm = approx 10.0 inches.

So you are dealing with a difference of 0.8 inches which is just over 3/4 of an inch, that might be enough to cause some bead sealing problems, but since they are coming with their own rims that won't be a problem.

Something that may cause you problems (if you have driven this truck for a long time) is that the wider the tire is the more grip is has to the road surface and the better handling you will get in corners (to a point) you may feel the 3/4 inch difference or you may not it will depend on your driving style and how well your truck handled in the first place.

[way2old]

It will also make your speedometer off. Probably be reading about 8 mph faster at 60 than it should.