Jay, Thanks for the attached. Do you happen to know if these sorts of figures
are for loaded or unloaded tires? Seems like loaded radials could lose
somewhere around 4mm on the effective radius (8mm of diameter) to the buldge
above the footprint. The bias-ply tires don't appear to give as much.
This could be sort of like measuring diameter of the tire in the trunk rather
than the effective diameter of the tires on the road. Just curious.
> Size Diameter Width (mm)
>
> 5.60-13 600 145 - std on Series I & II (Rims 4J and 4.5J)
> 5.90-13 616 150 - opt on all Series (Rims 4J and 4.5J)
> 6.00-13 600 156 - std on Series III - V (Rims 4.5J and 5J)
>
> 155 R 13 578 157 (reported as too low)
> 165 R 13 596 167
> 175 R 13 608 178 (reported as too high)
> 185 R 13 624 188
>
> 195/70 R13 608 197
> 205/70 R13 625 204
> 175/70 R14 606 176
> 185/70 R14 624 186
>
Regards,
Bob Douglas
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