Tires for old Rigida rim

[Tom]

My old beater (found in the garbage), is in need of new skins. The rim says
26x1 3/8ths, but the 26ers I've bought are too small, and the 27s I tried were
too big. The rim has "Rigida", "Chromage" and "Superchromix" stamped on it,
with a small diamond with the number 81 inside of it. Does anyone here know
where I could find tires to fit this odd-sized rim? Tom
Work at your leisure!

 

[meb]

My old beater (found in the garbage), is in need of new skins. The rim says
26x1 3/8ths, but the 26ers I've bought are too small, and the 27s I tried were
too big. The rim has "Rigida", "Chromage" and "Superchromix" stamped on it,
with a small diamond with the number 81 inside of it. Does anyone here know
where I could find tires to fit this odd-sized rim? Tom
Work at your leisure!

This article will help you understand the dilema of multiple sizing standards used in the bicycle industry:

http://www.sheldonbrown.com/tire_sizing.html

Especially with 26 inch tires, use the ISO sizing. Match the ISO bead diameter (expressed in mm). on the old tire.

If the old tires are pre ERTA/ISO standars, a tape measure may help.

 

[Peter]

Tom wrote:

> My old beater (found in the garbage), is in need of new skins. The rim says
> 26x1 3/8ths, but the 26ers I've bought are too small, and the 27s I tried were
> too big. The rim has "Rigida", "Chromage" and "Superchromix" stamped on it,

Unfortunately not all tires labeled 26" are actually the same diameter.
The ones shown here will probably work:
http://www.sheldonbrown.com/harris/tires/590.html
or check with local bike shops and explain that these rims are from an
old 3-speed and are 590 mm bead diameter, *not* the 559 mm bead diameter
of 26" mountain bike tires.

 

[A Muzi]

Tom wrote:

> My old beater (found in the garbage), is in need of new skins. The rim says
> 26x1 3/8ths, but the 26ers I've bought are too small, and the 27s I tried were
> too big. The rim has "Rigida", "Chromage" and "Superchromix" stamped on it,
> with a small diamond with the number 81 inside of it. Does anyone here know
> where I could find tires to fit this odd-sized rim? Tom
> Work at your leisure!


26 mountain bike tires are decimals (26 x 1.5, 26 x 1.95,
etc) and 559mm

Yours is likely 26 x 1-3/8 x 1-5/8 EA3 at 590mm

There are also 26 x 1-3/8 x 1-1/4 597mm so try to find one
of those ISO numbers (590 or 597) first.

(There are many other 26-inch tire sizes, but less likely on
a cheap Rigida rim from 1981 and they won't be marked 1-3/8)

Please note that in bicycle tires, fractions and decimals
denote different series completely so 1.75 is _not_
equivalent to 1-3/4!
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

 

[Tom]

Thanks for the information. Harris' website is excellent, too. Tom
Work at your leisure!

 

[Andrew Webster]

Peter <[email protected]> wrote in message news:<[email protected]>...
> Tom wrote:
>
> > My old beater (found in the garbage), is in need of new skins. The rim says
> > 26x1 3/8ths, but the 26ers I've bought are too small, and the 27s I tried were
> > too big. The rim has "Rigida", "Chromage" and "Superchromix" stamped on it,
>
> Unfortunately not all tires labeled 26" are actually the same diameter.
> The ones shown here will probably work:
> http://www.sheldonbrown.com/harris/tires/590.html
> or check with local bike shops and explain that these rims are from an
> old 3-speed and are 590 mm bead diameter, *not* the 559 mm bead diameter
> of 26" mountain bike tires.

Note also that tyres marked in fractions 26x1 3/8 are likely to fit
while those marked in decimals (26x 1.3 etc) are likely to be 559mm
and therefore be too small (though this is not infallible).

Andrew Webster

 

[Tom]

I've found the proper tires, and thanks to all who've helped me out. I seem to
learn something new every day. Tom
Work at your leisure!

 

[Zog The Undeniable]

Tom wrote:

> My old beater (found in the garbage), is in need of new skins. The rim says
> 26x1 3/8ths, but the 26ers I've bought are too small, and the 27s I tried were
> too big. The rim has "Rigida", "Chromage" and "Superchromix" stamped on it,
> with a small diamond with the number 81 inside of it. Does anyone here know
> where I could find tires to fit this odd-sized rim? Tom
> Work at your leisure!

That's the old English roadster size. Look for tyres that have their
width marked in fractions, not decimals. I doubt your rims are recent
enough to have ETRTO dimensions on them, which would clear up all doubt.