Wheel sizes

[porschercr]

Does anyone know the wheel size on the Fujimi Porsche Cayman? (17,18 inch?)

What is the formula for determining wheel sizes on 1/24th and 1/25 scale cars?

 

Thanks,

Trevor

[Ace-Garageguy]

  On 9/30/2017 at 10:49 PM, porschercr said:

Does anyone know the wheel size on the Fujimi Porsche Cayman? (17,18 inch?)

What is the formula for determining wheel sizes on 1/24th and 1/25 scale cars?

The "formula" is just the same for wheels as it is for determining any other scale measurement on any part of any car.

For 1/24 scale, take the real measurement and divide by 24.

For 1/25, take the real measurement and divide by 25.

So...a 17 inch wheel on a real car would measure .708 inches for 1/24 scale (which is why a digital caliper can be handy).

A 17 inch wheel in 1/25 scale would be .68 inches (which is 17.2 mm). The interesting thing here is that one inch in full scale is quite close to 1 mm in 1/25 scale, so you can get pretty close that way too.

NOTE: Wheel diameter is NOT measured across the front face of a wheel. Rather, it's measured at the tire mounting surface...and very few model companies regularly get this right for some odd reason..

 

[porschercr]

Thank you, Sir.

[peteski]

  On 10/1/2017 at 12:00 AM, Ace-Garageguy said:

The "formula" is just the same for wheels as it is for determining any other scale measurement on any part of any car.

For 1/24 scale, take the real measurement and divide by 24.

For 1/25, take the real measurement and divide by 25.

So...a 17 inch wheel on a real car would measure .708 inches for 1/24 scale (which is why a digital caliper can be handy).

A 17 inch wheel in 1/25 scale would be .68 inches (which is 17.2 mm). The interesting thing here is that one inch in full scale is quite close to 1 mm in 1/25 scale, so you can get pretty close that way too.

NOTE: Wheel diameter is NOT measured across the front face of a wheel. Rather, it's measured at the tire mounting surface...and very few model companies regularly get this right for some odd reason..

 

For that reason I add one inch to the tire diameter to get an approximate wheel fact rim diameter (since that is what is used on a model). So to me a a 1:1 17" wheel will be 18 inches in diameter.

Edited October 2, 2017 by peteski