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some help please :)
19 Aug 2008 20:28 #113
by Gaz
some help please :) was created by Gaz
im gonna change my tires for some muds,
ive got KL71's in mind .
my question is this :
what is the difference between 30/9.5/15 and 235/75/15 ???
from what i can tell its pretty much the same , price is very similar too .
they both have a 30" diameter, but i dont know what the 9.5 stands for ??:huh:
many thanks
Gaz
ive got KL71's in mind .
my question is this :
what is the difference between 30/9.5/15 and 235/75/15 ???
from what i can tell its pretty much the same , price is very similar too .
they both have a 30" diameter, but i dont know what the 9.5 stands for ??:huh:
many thanks
Gaz
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19 Aug 2008 21:12 #114
by mlines
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
Replied by mlines on topic Re:some help please :)
One is the Imperial (old/American) way of sizing tyres and the other is the metric.
30/9.5x15 stands for 30inch diameter, 9.5 inches width and 15 inch wheel diameter.
235/75/15 stands for 235mm width, 75% aspect ratio and 15 inch wheel diameter.
To convert the metric way backwards....
Take 75% of 235 = 176mm - this is the height of ONE sidewall of the tyre
Double it (because the tyre is round and there a TWO sidewalls in every diameter) = 352mm
Convert millimeters to inches = 352/25 (approximately) = 14.08 inches.
Add onto the 15 inches for the wheel rim = 14.08 + 15 = 29.8 inches.
So a 235/75/15 tyre is 29.8/9.4 x 15 in old money - so is all but the same tyre.
Martin
30/9.5x15 stands for 30inch diameter, 9.5 inches width and 15 inch wheel diameter.
235/75/15 stands for 235mm width, 75% aspect ratio and 15 inch wheel diameter.
To convert the metric way backwards....
Take 75% of 235 = 176mm - this is the height of ONE sidewall of the tyre
Double it (because the tyre is round and there a TWO sidewalls in every diameter) = 352mm
Convert millimeters to inches = 352/25 (approximately) = 14.08 inches.
Add onto the 15 inches for the wheel rim = 14.08 + 15 = 29.8 inches.
So a 235/75/15 tyre is 29.8/9.4 x 15 in old money - so is all but the same tyre.
Martin
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
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