Dumb question about tires & wheels

[landman]

Most kit tires appear to be 10.00-20. Most rubber/resin repops appear to start at 11.00-22. Does that mean that if I buy Resin wheels I have to buy tires too?

[KJ790]

No, many casters (myself included) offer both sizes of rims. Just let whoever you are buying the rims from know what tires you want to use with them and they should be able to tell you if they have rims to fit the tires.

[Casey]

AMT included the slightly larger 11.00x22 tires in a few of its big truck kits, the Diamond REO for one:

[KJ790]

Correct, some of AMT's trucks come with 10.00-20 tires and some come with 11.00-22 tires. Moebius models come with a modern 22.5" tire, which is the same size rim as the 10.00-20 tires from AMT.

[Truck parts]

Thanks that's nice to know about the Moebius tires

[Force]

AMT had 10.00-20 tires in most truck and trailer kits and 11.00-22 tires in a few, Ertl had 11.00-20 tires in all their truck and trailer kits and that is the tires used in most of the AMT trucks today, the rim diameter are the same for both makes except for the AMT 11.00-22 tires, and as KJ says, also the Moebius rims, meaning that the kit wheels are not true to scale.

Most modern trucks here in Europe uses 12.00-22.5 and that size are also used in the US, but I have also seen that 11.00-24.5 wheels are common on US trucks, all these are tubeless tires on one piece wheels, the 10.00-20, 11.00-20 and 11.00-22 are tube type tires with split rim wheels with lock ring.

Edited February 14, 2015 by Force

[purepmd]

Hey Guys,

As a former trucker, who has had to buy more than a few tires, you learn more than you ever wanted to know abount those things.

While 11x24.5 tires are still available, and still have some of the highest single and dual load ratings, the most popular modern tires are the 285/75R22.5. Most large fleets use thes almost exclusively. They are cheaper and still have acceptable load ratings. However, they wear much faster due to the smaller circumference, More rotations per mile and all. 11x24.5 tires are measured, and named, by their section width, 11 inches, and wheel size, while metric radial sized tires, are named for the actual tread width, 285 milimeters. While 11x24.5s have a diameter of approximately 43 to 44 inches, 285/75R24.5s are about 41 to 42 inches tall. This is mounted on standard, 8.25 x 24.5 Alcoa or Budd wheels. The tires in the AMT kits are correct for the late 1960s and early 1970s when these models were tooled, and split rims ruled. By the late '70s, when length and weight laws went up bigger, more load carrying rubber was needed. These advancements, coupled with, the tubeless, one piece wheels rendered 10x20s and 11x22s obsolete.

[Art Anderson]

AMT Corporation put 22" wheels and tires in all their White Truck kits, beginning with the White Freightliners which came out in 1971. All the other AMT kits that I was aware of back then had 20" rims and tires.

Art

[Force]

Hey Guys,

As a former trucker, who has had to buy more than a few tires, you learn more than you ever wanted to know abount those things.

While 11x24.5 tires are still available, and still have some of the highest single and dual load ratings, the most popular modern tires are the 285/75R22.5. Most large fleets use thes almost exclusively. They are cheaper and still have acceptable load ratings. However, they wear much faster due to the smaller circumference, More rotations per mile and all. 11x24.5 tires are measured, and named, by their section width, 11 inches, and wheel size, while metric radial sized tires, are named for the actual tread width, 285 milimeters. While 11x24.5s have a diameter of approximately 43 to 44 inches, 285/75R24.5s are about 41 to 42 inches tall. This is mounted on standard, 8.25 x 24.5 Alcoa or Budd wheels. The tires in the AMT kits are correct for the late 1960s and early 1970s when these models were tooled, and split rims ruled. By the late '70s, when length and weight laws went up bigger, more load carrying rubber was needed. These advancements, coupled with, the tubeless, one piece wheels rendered 10x20s and 11x22s obsolete.

You are right on that.

No one uses tube type tires anymore...not on working trucks anyway.

Over here in Sweden they use 8.25-9.00 X 22.5 inch rims almost exclusively as it's almost impossible to find tires for over here for any larger wheels.

The tires could be either 12.00 or 295/80R and sometimes when frame hight are an issue they can use 55 or 60 profile.

Lots of trucks here also uses 385/55R-22.5 steer tires on 11.75 X 22.5 wheels even for highway use, they run cooler and lasts longer.

Edited February 21, 2015 by Force