[bwaminispeed]

Yep,I finally got going on my Wheel/Tire chart,for the different tire that fit my various wheels.There are also Overall diameters in Real size,and 1:1 size,as well as Rollout and Tread Contact width.

More and varied info will also be added as time goes on.

Wheel n Tire Info Chart

 

[howmet tx]

Thanks, BWA
That's really useful, and will facilitate my orders! But I am also extremely dumb, and not immediately sure what you mean by 'Rollout'. And not meaning to be ungrateful, but.......mililmetres?

 

[Tropi]

Rollout is usually defined as the distance travelled by the vehicle in one exact revolution of the motor and is an exact function of tyre diameter and transmission gearing. So it's a very useful figure, but I too am not 100% certain how it applies here.
The 3 figures, as given, 'look like' they are

1. 1:32 Diameter
2. 1:1 Diameter
3. Rollout on the basis of a 1 to 1 gear ratio (ie, the circumference of the tyre)
Edited to correct original 'diameter' to 'circumference'

mm is the standard measurement unit in Europe, but we can handle that part OK, I think.

 

[astro]

great info bwa!

tropi, rollout with a 1:1 ratio = circumference, diameter x pi

 

[Tropi]

Astro, of course you are right and I have corrected it.
We can't have misleading crap being posted - thank you!

Thinks . . . I must quit posting just before going to the office,
while the old brain is still in never-never land!
Now where's me bluddy coffee?
Mumble, grunt . . .

 

[bwaminispeed]

Yes,it is a bit missleading.You actually have to divide your gear ratio into the last figure,which is actually the circumfrence.

This is just a preliminary phase,and more info/charts will be posted.

Suggestions are allways welcome.