valve extension quick question

Everything about building wheels, glueing tubs, etc.
mattjevans
Posts: 276
Joined: Thu Mar 28, 2013 11:07 pm

by mattjevans

Planet X 50mm tubular rim.

Want Zipp valve extenders.

33 or 48mm ?
Last edited by mattjevans on Mon Apr 29, 2013 4:36 pm, edited 1 time in total.

Mackers
Posts: 472
Joined: Wed Sep 05, 2007 2:02 pm

by Mackers

33

by Weenie


mattjevans
Posts: 276
Joined: Thu Mar 28, 2013 11:07 pm

by mattjevans

thx

mrd
Posts: 42
Joined: Fri Feb 01, 2013 12:26 pm

by mrd

surely it depends on the length of valve on your tub and whether it has a removable core?

mattjevans
Posts: 276
Joined: Thu Mar 28, 2013 11:07 pm

by mattjevans

mrd wrote:surely it depends on the length of valve on your tub and whether it has a removable core?


I won't be buying tubulars that don't have removal cores. I assumed valve length is standardised ?

mrd
Posts: 42
Joined: Fri Feb 01, 2013 12:26 pm

by mrd

The zipp valve extenders fit over the top of existing valve and you have to leave the valve where it is, therefore you cannot close it unless you use topeak valve extenders with the inner valve closing tube. Most people with tubs on deep section wheels use removable valve core tubs and non-zipp extenders where you unscrew valve core from tub, fit valve extender with ptfe tape to ensure a permanent seal then refit valve core to the end of the extender, again with ptfe tape. This is a better solution.

Mackers
Posts: 472
Joined: Wed Sep 05, 2007 2:02 pm

by Mackers

Standard valve length is between 38 and 42mm


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jekyll man
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Location: Pack filler

by jekyll man

Will you be using vittoria tubs?
Official cafe stop tester

mattjevans
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Joined: Thu Mar 28, 2013 11:07 pm

by mattjevans

Probably

Mackers
Posts: 472
Joined: Wed Sep 05, 2007 2:02 pm

by Mackers

(Some) Vittorias have no real valves, but the really long red cores. Those only work with extenders for removable cores.

mattjevans
Posts: 276
Joined: Thu Mar 28, 2013 11:07 pm

by mattjevans

I bought some Token extenders that are for removable core valves

mattjevans
Posts: 276
Joined: Thu Mar 28, 2013 11:07 pm

by mattjevans

OK so looks like the Tokens were a fail but at least it was a cheap fail

Mackers
Posts: 472
Joined: Wed Sep 05, 2007 2:02 pm

by Mackers

How are they a fail?

by Weenie


mattjevans
Posts: 276
Joined: Thu Mar 28, 2013 11:07 pm

by mattjevans

Because the Vittorias don't have a removable core. They have a removable entire valve

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