642mm

Adam Rush said:

I just picked up a Nokia tube and noticed that it says it is good for
tyres of "25-32" & "609-642". Okay, I know 609mm is 27x1½, but what
is 642mm?

My God, it's a cell phone, man!

Bill "or not a really small car?" S.

Quoted message said:

Quoted message said:

I just picked up a Nokia tube and noticed that it says it is good for
tyres of "25-32" & "609-642". Okay, I know 609mm is 27x1½, but what
is 642mm?

My God, it's a cell phone, man!

Bill "or not a really small car?" S.

My apologies, your pedantitude--"Nokian"

Adam Rush said:

I just picked up a Nokia tube and noticed that it says it is good
for tyres of "25-32" & "609-642". Okay, I know 609mm is 27x1½, but
what is 642mm?

I don't know what either 609 or 642 are. 622mm is 700C and 630mm is 27".
You can use the tube for either of those.

--

Quoted message said:

Quoted message said:

I just picked up a Nokia tube and noticed that it says it is good
for tyres of "25-32" & "609-642". Okay, I know 609mm is 27x1½, but
what is 642mm?

I don't know what either 609 or 642 are. 622mm is 700C and 630mm is 27".
You can use the tube for either of those.

What?

(Adam Rush) said:

I just picked up a Nokia tube and noticed that it says it is good for
tyres of "25-32" & "609-642". Okay, I know 609mm is 27x1½, but what
is 642mm?

Even Sheldon's "Tire Sizing" page,
http://www.sheldonbrown.com/tire-sizing.html
has no listing for either 609 or 642.

jeverett3<AT>earthlink<DOT>net http://home.earthlink.net/~jeverett3

John Everett said:

(Adam Rush) said:

I just picked up a Nokia tube and noticed that it says it is good for
tyres of "25-32" & "609-642". Okay, I know 609mm is 27x1½, but what
is 642mm?

Even Sheldon's "Tire Sizing" page,
http://www.sheldonbrown.com/tire-sizing.html
has no listing for either 609 or 642.

Sutherlands to the rescue

40-609: 27 x 1 1/2
37-642: 28 x 1 3/8 (700A)
--
---
Marten Gerritsen

INFOapestaartjeM-GINEERINGpuntNL
www.m-gineering.nl

Adam Rush said:

Quoted message said:

Quoted message said:

I just picked up a Nokia tube and noticed that it says it is good
for tyres of "25-32" & "609-642". Okay, I know 609mm is 27x1½, but
what is 642mm?

I don't know what either 609 or 642 are. 622mm is 700C and 630mm is 27".
You can use the tube for either of those.

What?

700C are 622.
27" are 630
Roadsters are 642.
609 is roughly the ancient USA size 26 x 1.375.

The tube manufacturer is showing more optimism that I would.

--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971