which 650c gumwalls will work with deep rims?

Posted on Sat 23rd, June 2018

• #1

Schlonzo

Hi guys,

which gumwall tyre / valve extender combination will work on my 650c Shamal rim? I have a new Vittoria Juniores and a vintage Clement tyre. Both of them do not allow to dismantle the valve, and just the clement has threading on the outside.

Do I just put an extender on the clement and leave the valve nut always open?
• #2

|³|MA3K

If it is a 650 tyre it will fit on a 650 rim. Valve extender should not make a difference.

Take a pic or take it to a bike shop.
• #3

Schlonzo
My question just concerns the valve length. I am open for any 650c gumwall tire/adapter combination that enables me to use it on my deep rim. When I look for "valve extenders" I just find pieces that go between the tyre and the old valve. My vents can't be removed, so what piece do I need to mount this on my rim?

1 Attachment
• #4

dancing james in reply to @Schlonzo

https://www.slowtwitch.com/Tech/Valve_Extender_How-To_3007.html
• #5

motoko in reply to @Schlonzo

Do I just put an extender on the clement and leave the valve nut
always open?

This is what I used to do.
• #6

|³|MA3K

Ha.
• #7

Schlonzo

The little threads on the end of some fixed valve extenders confused me. Good article, thx!

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