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Scale Equipment Ltd. tire dimensions

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  • Member since
    July, 2016
  • From: Podunk, Illinois
Scale Equipment Ltd. tire dimensions
Posted by smhardesty on Monday, April 03, 2017 12:53 PM

I contacted Scale Equipment, Ltd, about their wheels & tires. I wanted to get an idea of the actual size of the tires so I'd know which to order for builds I have planned. They sent me a couple of emails explaining a lot of different things and also sent me this dimension chart. I thought I’d share it in case anybody else could use the info.

 

Steve

On the bench - Right now, a mess.

  • Member since
    September, 2013
Posted by theoldman on Monday, April 10, 2017 4:58 PM

Thanks for sharing.  Would these dimensions be 1/25 or 1/24 scale?

  • Member since
    December, 2003
  • From: Nova Scotia
Posted by Bainford on Monday, April 10, 2017 8:10 PM

The dimensions listed in the chart are actual sizes, not scale sizes. To work out the size in scale, multiply the sizes listed by the scale.

The GT Tread Series tire has an ID of .67 inches (dimension B) and a tread width of .33 inches (dimension C). In 1/25 scale this is an ID of .67 x 25 = 16.75 inches and a tread width of .33 x 25 = 8.25 inches. In 1/24 scale these dimensions equal 16.08" ID and 7.92" wide.

The dimensions would seem to represent a 1/24 scale 16" tire with an 8" tread, though could well pass as a 17" tire in 1/25 scale.

Power matters in the straights.
Lightness matters everywhere. - Colin Chapman

Trevor

  • Member since
    July, 2016
  • From: Podunk, Illinois
Posted by smhardesty on Tuesday, April 11, 2017 12:35 PM

Thanks, Bainford. Excellent explanation. I had asked SEL a couple of questions about scale size on their tires and wheels. Below is exactly what I got back from them. It makes perfect sense to me. I have read a few posts where guys mentioned that the wheels & tires included in a kit were either too small or too big for the car itself. With a couple different sets of wheel & ires from SEL on hand, that should never be a problem for me again, at least I hope.

 

Now, onto scale.The thing to keep in mind is by taking the attitude of
"Well, the box says 1/25 and come hell or high water that's what i'm gonna
use!" will simply make you crazy. Over the years manufactures have fudged
the scale in many places on models. this can range from a wheel being a
bit undersized to the entire kit being out of proportion, rendering it
worthless except for a building exersize. Build to what looks good to you,
and what fits your memory of the cars you are trying to replicate. Unless
you are building for a judged competition, you are not going to get called
out on it.

Consider this, 1/25 and 1/24 scale are roughly 1/2 inch equals a foot.
Roughly because neither are 100% 1/2 inch scale. Look at a metric ruler.
One inch is equal to 25.4mm, therefore one mm is roughly one scale inch in
1/25 scale. Consider the extremely small size difference and you will
understand the "Build so it looks right to you" concept.

 

Steve

On the bench - Right now, a mess.

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