Don:
The original tire size for the B was 5.60-14 which equates to a 24.60"
diameter. When radials came out the fitment went to a 155 R 14 (23.8") with
the 165 R 14 (24.5") standard on the GT (which had a wider steel wheel) and
an option on the roadster. According to Clausager the 155SR14 was standard
on the MGB roadster till the introduction of the rubber bumper cars, at
which time 165SR14 tires were supplied. This was probably a cost issue,
since stock OE tires always tended to be the cheapest that would meet
minimum specs.
In answer to your question. Many owners went to the 165/14 tires because of
they were generally available and were listed in the owners handbook as the
performance option.
my two bits.
Kelvin.
> -----Original Message-----
> From: Don Malling [mailto:dmallin@attglobal.net]
> Sent: Friday, July 25, 2003 2:47 PM
> To: Dodd, Kelvin
> Cc: mgs@autox.team.net
> Subject: Re: MGB Tire Size
>
>
> Hi Kelvin and list,
>
> I have three MGB's. A 73 driver and 2 parts cars 68 and 69.
> Every tire
> except one on these cars was a 155R14 not 165R14
>
> Was 165R14 more common that 155R14 or does everyone just prefer the
> looks of the 165R14?
>
> 155R14 translates to 175/70 14 correct?
>
> Thanks,
>
> Don Malling
>
>
>
> Dodd, Kelvin wrote:
> > What width 72 spoke?
> >
> >
> > Usually the 72 spoke are 5.5" wide and the original 165/14
> are going to be
> > too skinny to look correct.
> >
> > If the rim is 5.5" wide, I'd suggest going to the 185/70 14
> tire for the
> > correct look. This tire was stock on the MGB LE with 5.5"
> wheels and is
> > generally available.
> >
> >
> >
> > K.
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