Bit boring really - Valves Q

[wurly]

Hi folks

What inner tubes should i be using on these dual walled rims?

There are inner tubes with presta valves fitted at the moment, but as you can see the hole size is rather big. When the nut is tightned, the valve moves back and forth when pumping the tyres up. I have already broken the small threaded bit of the valve on one innertube (luckily i always carry a spare).
I tried fitting inner tubes with schrader valves, but they don't protrude enough to get the pump fitted on the end to inflate them.
A quick search on ebay, reveals 3 different types of valves

http://www.ebay.co.u...185123542845671

Schrader 35mm (not long enough)
Presta( too narrow for the hole)
Woods (never heard of them before, but look like they might be ok)

 

[Angelfishsolo]

Many presta valves come with a ring that will secure the value to the rim. You can also get presta valves in many lengths, for example http://www.evanscycles.com/products...oogle&utm_medium=froogle&utm_campaign=froogle

 

[dodgy]

Looks to me like you've lost the rubber gromet that stops the presta valve from rattling around. Either that, or they were never fitted in error.

 

[Angelfishsolo]

Hi folks

What inner tubes should i be using on these dual walled rims?

Hang on. Look at the screw below the vale cap. That should be able to screw down to the rim and hold the valve in place. Failing that I have a few spare that you can have.

 

[dodgy]

I think he undid the valve bolt to reveal the size of the hole, and the op also said in his first post that "When the nut is tightned, the valve moves back and forth when pumping the tyres up".

One of these will sort you out http://www.sjscycles.co.uk/mavic-ri...onverter-insert-schraeder-to-presta-prod3335/

 

[Angelfishsolo]

I think he undid the valve bolt to reveal the size of the hole, and the op also said in his first post that "When the nut is tightned, the valve moves back and forth when pumping the tyres up".

One of these will sort you out http://www.sjscycles...resta-prod3335/

TBH I have never needed those but for the price you can't go wrong really can you?

 

[wurly]

Ahhhhh!
That would explain it. I know you could get those inserts for car wheels, didn't know they were available for bicycle wheels.
Thanks, you answered my next question.

 

[byegad]

You can buy valve extenders for schrader valves. Not sure where I got mine from for a trailer wheel. Try SJS Cycles.