What's the "c" mean in tire size? - Page 4

07-08-2004, 03:59 AM

On Wed, 07 Jul 2004 21:28:55 GMT, "Fred Hall" <[Only registered and activated users can see links. ].com>
wrote:
>Been looking at some tires and was wondering...I see some listed as 700 x 23
>and others listed as 700 x 23c (or 25c or 28c). My question is what
>difference is denoted by having the "c" there?

C is for cookie, that's good enough for me!

Hey you know what?
A round cookie with one bite out of it
Looks like a C
A round donut with one bite out of it
Also looks like a C
But it is not as good as a cookie
Oh and the moon sometimes looks like a C
But you can't eat that, so
C is for cookie, that's good enough for me, yeah!

That's the only possible explanation.
--
Rick Onanian

07-08-2004, 07:35 AM

Ken wrote:

> "Fred Hall" <[Only registered and activated users can see links. ].com> wrote in
> news:rWZGc.30688$[Only registered and activated users can see links. ].com:
>
>>Been looking at some tires and was wondering...I see some listed as 700 x
>>23 and others listed as 700 x 23c (or 25c or 28c). My question is what
>>difference is denoted by having the "c" there?
>
>
> 700A, 700B, and 700C are all tire size standards. Only 700C is used today.
> If you see 700 without the "C" on a modern tire or rim, you can assume 700C.

Ken's right. Long, long ago (in Europe) the tire and wheel sizing was
much different. 700 A, 700 B and 700 C all had the same outside
diameter of the tire. But the tires had different widths, so the rims
had different diameters. A 700 C tire wouldn't fit a 700 B rim.

Now all "700" rims have the same bead seat diameters, and if you change
to a fatter tire, your outside diameter increases.

You can still (with difficulty) get 650 B wheels and tires. A little
less diameter, a little more width than your typical road wheel & tire.

--
--------------------+
Frank Krygowski [To reply, remove rodent and vegetable dot com,
replace with cc.ysu dot edu]

07-08-2004, 07:35 AM

Ken wrote:

> "Fred Hall" <[Only registered and activated users can see links. ].com> wrote in
> news:rWZGc.30688$[Only registered and activated users can see links. ].com:
>
>>Been looking at some tires and was wondering...I see some listed as 700 x
>>23 and others listed as 700 x 23c (or 25c or 28c). My question is what
>>difference is denoted by having the "c" there?
>
>
> 700A, 700B, and 700C are all tire size standards. Only 700C is used today.
> If you see 700 without the "C" on a modern tire or rim, you can assume 700C.

Ken's right. Long, long ago (in Europe) the tire and wheel sizing was
much different. 700 A, 700 B and 700 C all had the same outside
diameter of the tire. But the tires had different widths, so the rims
had different diameters. A 700 C tire wouldn't fit a 700 B rim.

Now all "700" rims have the same bead seat diameters, and if you change
to a fatter tire, your outside diameter increases.

You can still (with difficulty) get 650 B wheels and tires. A little
less diameter, a little more width than your typical road wheel & tire.

--
--------------------+
Frank Krygowski [To reply, remove rodent and vegetable dot com,
replace with cc.ysu dot edu]

07-08-2004, 07:35 AM

Ken wrote:

> "Fred Hall" <[Only registered and activated users can see links. ].com> wrote in
> news:rWZGc.30688$[Only registered and activated users can see links. ].com:
>
>>Been looking at some tires and was wondering...I see some listed as 700 x
>>23 and others listed as 700 x 23c (or 25c or 28c). My question is what
>>difference is denoted by having the "c" there?
>
>
> 700A, 700B, and 700C are all tire size standards. Only 700C is used today.
> If you see 700 without the "C" on a modern tire or rim, you can assume 700C.

Ken's right. Long, long ago (in Europe) the tire and wheel sizing was
much different. 700 A, 700 B and 700 C all had the same outside
diameter of the tire. But the tires had different widths, so the rims
had different diameters. A 700 C tire wouldn't fit a 700 B rim.

Now all "700" rims have the same bead seat diameters, and if you change
to a fatter tire, your outside diameter increases.

You can still (with difficulty) get 650 B wheels and tires. A little
less diameter, a little more width than your typical road wheel & tire.

--
--------------------+
Frank Krygowski [To reply, remove rodent and vegetable dot com,
replace with cc.ysu dot edu]

07-08-2004, 07:35 AM

Ken wrote:

> "Fred Hall" <[Only registered and activated users can see links. ].com> wrote in
> news:rWZGc.30688$[Only registered and activated users can see links. ].com:
>
>>Been looking at some tires and was wondering...I see some listed as 700 x
>>23 and others listed as 700 x 23c (or 25c or 28c). My question is what
>>difference is denoted by having the "c" there?
>
>
> 700A, 700B, and 700C are all tire size standards. Only 700C is used today.
> If you see 700 without the "C" on a modern tire or rim, you can assume 700C.

Ken's right. Long, long ago (in Europe) the tire and wheel sizing was
much different. 700 A, 700 B and 700 C all had the same outside
diameter of the tire. But the tires had different widths, so the rims
had different diameters. A 700 C tire wouldn't fit a 700 B rim.

Now all "700" rims have the same bead seat diameters, and if you change
to a fatter tire, your outside diameter increases.

You can still (with difficulty) get 650 B wheels and tires. A little
less diameter, a little more width than your typical road wheel & tire.

--
--------------------+
Frank Krygowski [To reply, remove rodent and vegetable dot com,
replace with cc.ysu dot edu]

07-08-2004, 07:35 AM

Ken wrote:

> "Fred Hall" <[Only registered and activated users can see links. ].com> wrote in
> news:rWZGc.30688$[Only registered and activated users can see links. ].com:
>
>>Been looking at some tires and was wondering...I see some listed as 700 x
>>23 and others listed as 700 x 23c (or 25c or 28c). My question is what
>>difference is denoted by having the "c" there?
>
>
> 700A, 700B, and 700C are all tire size standards. Only 700C is used today.
> If you see 700 without the "C" on a modern tire or rim, you can assume 700C.

Ken's right. Long, long ago (in Europe) the tire and wheel sizing was
much different. 700 A, 700 B and 700 C all had the same outside
diameter of the tire. But the tires had different widths, so the rims
had different diameters. A 700 C tire wouldn't fit a 700 B rim.

Now all "700" rims have the same bead seat diameters, and if you change
to a fatter tire, your outside diameter increases.

You can still (with difficulty) get 650 B wheels and tires. A little
less diameter, a little more width than your typical road wheel & tire.

--
--------------------+
Frank Krygowski [To reply, remove rodent and vegetable dot com,
replace with cc.ysu dot edu]