Bias ply tire width vs. radials

[ggdad1951]

does anyone know the difference in width of a bias play vs. a radial of the same size for the 16" rims? At least measure a bias ply and post it? I know my radial width.

[mechresto]

in the yrs 1949-1970 they used two different aspect ratios. these measurements are based on the "90" series aspect ratio (the most common) for early tires, later bias ply used a lower number "80" series aspect which resulted in a shorter tire.

first are the called widths then the tire OD, then actual widths for standard pre-64 Bias ply tires.

4.75/5.00-16, 24.13, 3.94

5.00/5.25-16, 26.80, 5.00

5.50-16, 26.90, 5.25

6.00-16, 26.36, 6.25

6.50-16, 29.30, 6.80

7.50-16, 31.45, 8.20

8.25-16, 32.45, 8.80

to get a modern radial to fit a 6.50-16 with close to the original height/width you have but one choice LT225/75R16 (29")

Hope this is what you need

Bryan

PS the fellers at coker tire have always been a help to me when converting bias to radial. it's not just about size, it's application

Edited November 12, 2011 by mechresto

[ggdad1951]

I want to know the width so I can make the spare tire carrier bolts long enough for everyone.

thanks

[B1B Keven]

My 7.50 x 16 bias spare is roughly 8 1/2" wide.

[greg g]

tread width, shoulder width, or maximum width???

[ggdad1951]

max width

[95ttoplt1]

to get a modern radial to fit a 6.50-16 with close to the original height/width you have but one choice LT225/75R16 (29")

I just put 215/75/16s on my factory wheels and they measure right between a 6.00 and 6.50 x16. To get really close you'd actually need a 205/85/16 but no one makes them, and the 215/85/16 which is really close to a 6.50x16 are super exspensive.

[41/53dodges]

I just put 215/75/16s on my factory wheels and they measure right between a 6.00 and 6.50 x16. To get really close you'd actually need a 205/85/16 but no one makes them, and the 215/85/16 which is really close to a 6.50x16 are super exspensive.

if you go to the local used tire shops, they usually have 215-85-16's in stock, they come off dually pickup trucks, and are usually around $100

[95ttoplt1]

if you go to the local used tire shops, they usually have 215-85-16's in stock, they come off dually pickup trucks, and are usually around $100

I wish I lived where you did!! I went to all sorts of tire shops and no one had them. I finnaly settled on the 215/75/16 and get them mounted and balaced out the door for 140, and they are right between the stock size and the "maximum" size listed for a 53. I wish I could have got the 215/85's though.