In addition to the tire size variation, I believe a period Dunlop 48 spoke
was 4" wide, and a 60 spoke was 4.5", so all else being equal your sidewall
will probably bow out a little farther with the 60 spoke WW.
Somewhere I have a picture of my brother and I, a rope, a stout tree and a
stuck spare in a freshly restored TR3A, I will let your imagination fill in
the rest.
Greg Lemon
--------------------------------------------------
From: "Randall" <TR3driver@ca.rr.com>
Sent: Sunday, September 7, 2014 5:29 PM
To: "'Brian Thomas'" <thomasb@queensu.ca>; <triumphs@autox.team.net>
Subject: Re: [TR] Pre TS60000 TR3 and Radial Spare
>> I'm about to replace the bias ply tires on my 1956 TR3 with
>> radials. The
>> correct size appears to be 165R15.
>
> Nope, not on a 56. The 165 tires didn't come in until after TS60000 when
> the spare tire compartment got bigger.
>
>> If you have a pre TS60000 TR3 (or TR2) with a radial spare aboard, I'd
>> appreciate knowing what you are running and how tight the fit
>> is.
>
> I did have a whole set of 155 tires from Europe (sorry, don't recall the
> brand offhand), which would fit moderately snugly mounted
> on a steel wheel. But I gave them all away to friends with the same
> problem. As Geo said, I now run a "compact spare" from the
> junkyard, mounted on a standard TR3 rim, and it fits with lots of room to
> spare. I have to pack a blanket and a towel in to keep it
> from sliding around. (Which is OK, because they both come in handy while
> changing tires or other road-side services.)
>
> Not the best photo, but maybe you can make out how much smaller it is
> here:
> http://goo.gl/xUesSa
>
> The compact spare is supposed to be for temporary use only, and only at 45
> mph or below. But I drove a couple of hours at 70+ mph
> with it, and had no troubles. The car did handle a bit differently, but
> not enough for concern, IMO. YMMV and all that.
>
> Given how reliable modern steel radials are, there is something to be said
> for only carrying a can of Fix-a-Flat and a cell phone.
> But I like having a spare tire available, and the steel radial didn't help
> when I stupidly ran over a broken curb and punched a big
> hole in the sidewall.
>
> Randall
>
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