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[kinger]

hi guys any one know if 265/70/15 tyres are the same size as 31/10.5/15 tyres

[Bulldog67]

you may be able to make more sense of this tha me:

http://www.dakota-truck.net/TIRECALC/tirecalc.html

[kinger]

yep thanks bd, just the ticket, appears to be exactly the same , well maybe a gnats knacker in it. but hey with warm days and cold days will take care of that lol

[Bulldog67]

my pleasure 

its the gnats whisker bit that throws me 

[Nosebolt]

265/70x15 calcs to 29.606"

there is a tyre cal at the bottom of this page http://www.birtydastards.com/frm/index.php?action=ezportal;sa=page;p=8

[tim_aka_tim]

Arr. NB is right, you need 265/75R15 to be the same as 31s. 265/70R15 is only 30" tall,
though as wide as a 31.

[Bulldog67]

so, the moral is, if in doubt, always go that bit bigger 

[Dave69]

calculated size and actual size are two different things.

the tyres fitted to mine are 265/75/16 (kingpin mud tracker) and these measure 30" in diameter, claculated is 31.64

looks like i might need some bigger tyres