G scale wheels

[botangles]

I have a few Bachmann G scale cars ( not the spectrum ) and need replacement wheels for some. Bachmann makes metal wheel sets in "small " or "standard". Which ones would I need for a 4 wheel bobber caboose and a 8 wheel  boxcar? Would like to order the right ones the first time. Thanks.

[on30gn15]

Get the 31mm wheels.

[Red26]

You didn't really answer the question properly Which of the 2 sizes mentioned in the question is 31mm?

[charon]

Not only that, but the 8 wheel 20' boxcars take different size wheels than the regular 8 wheel boxcars.
Chuck

[Kevin Strong]

The "standard" size is the 31mm diameter wheel, which is what's under the bobber caboose and most everything in B'mann's standard line. The "small" 25mm wheels go to the so-called "1:20" line of 20' rolling stock. If your box car is longer than 12" long, it ain't that.

Later,

K

[on30gn15]

You didn't really answer the question properly Which of the 2 sizes mentioned in the question is 31mm?

Apply a modicum of deductive reasoning, and internet access, before opening your mouth.
http://www.bachmanntrains.com/home-usa/products.php?act=viewCat&catId=151
Large Metal Wheel Set (4 per card)    Large Metal Wheel Set (4 per card)

31.0 mm all-metal wheels for kitbashing or repairs....
   $24.00
   
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Small Metal Wheel Set (4 per card)    Small Metal Wheel Set (4 per card)

24.5 mm all-metal wheels for kitbashing or repairs....
   $24.00