Mavic Cosmic Carbones - Valve Length?

AlanW · Post by **AlanW** » 16 Mar 2015 17:42

I am considering getting a pair of the 52mm Cosmic Carbone wheels, but quick question to those they have them or have had them, what length valve is the most suitable?

I'm taking a guess that 60mm will be a bit short and 80mm far to long? Or is standard length valves together with valve extenders an option?

craig · Post by **craig** » 16 Mar 2015 17:47

Hi Al
You will just get away with 60mm valves
Craig

AlanW · Post by **AlanW** » 16 Mar 2015 17:51

craig wrote:Hi Al
You will just get away with 60mm valves
Craig

Cheers Craig, quick response!! Plus, a double bonus is that I have just looked and I have two brand new Conti Supersonic tubes with 60mm valves in my garage already.....

Nicks_77 · Post by **Nicks_77** » 16 Mar 2015 20:02

60mm are fine Al but I currently have 45mm in mine & I just carry valve extenders should I get a flat.

AlanW · Post by **AlanW** » 16 Mar 2015 20:06

Thanks Nick

jdtate101 · Post by **jdtate101** » 17 Mar 2015 08:26

Yep 60mm conti tubes are fine. The valve hole can be fairly large and the valve stem rattle a bit, so I always used the threaded 'nut' that comes on most tubes to clamp it down a touch, just to stop the noise.

AlanW · Post by **AlanW** » 19 Mar 2015 18:35

Wheels arrived, and 60mm Supersonic tubes fitted but I cannot get my track pump onto the valve as there isnt enough of the valve protruding. My Lezyne frame pump fits the valve okay, but I have no idea how much pressure is in the tube?

jdtate101 · Post by **jdtate101** » 19 Mar 2015 21:29

Strange...my track pump worked fine (cheapy bontranger model)

martin mc · Post by **martin mc** » 19 Mar 2015 22:03

I don't know about the mavic carbon 50mm wheels but I use 60mm conti supersonic tubes with my Shimano 50mm wheels, there's about 12mm of the threaded part of presta valve sticking out beyond rim - I use threaded connector on Lezyne track pump which works no problem.

AlanW · Post by **AlanW** » 19 Mar 2015 22:17

My track pump is a Specialized one and to be fair the pump head is quite large, which is clearly the problem - HERE I wonder if you can get some sort of adaptor that screws on like the Lezyne does but has Presta style at the other end that would push into a track pump head?

martin mc · Post by **martin mc** » 19 Mar 2015 23:34

I don't know about that cobmi Alan (sounds a bit like a simple valve extender) but I know you can get a screw on brass adaptor for attaching a pump head with a lock on Schraeder fitting to a threaded presta valve if that helps. I've got one if that's any good & you want to try it. Much cheaper than forking out for a new track pump.

matthew · Post by **matthew** » 22 Mar 2015 14:33

What you need is a new track pump Alan

AlanW · Post by **AlanW** » 22 Mar 2015 15:26

matthew wrote:What you need is a new track pump Alan

Dont you start!

matthew · Post by **matthew** » 22 Mar 2015 19:07

AlanW wrote:
matthew wrote:What you need is a new track pump Alan
Dont you start!

A nice new punp for them nice new wheels go on treat ya self. 😬

AlanW · Post by **AlanW** » 26 Mar 2015 20:32

Sorted, standard 42mm Continental Supersonic tubes fitted with 30mm Continental valve extensions.

dweben · Post by **dweben** » 26 Mar 2015 20:35

Ooooh they'll rattle something rotten... shoulda gone for the track pump

AlanW · Post by **AlanW** » 26 Mar 2015 21:04

dweben wrote:Ooooh they'll rattle something rotten... shoulda gone for the track pump

No they wont, they are covered in black heatshrink....

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Mavic Cosmic Carbones - Valve Length?

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