Valve extenders for deep dish wheels and co2



sambo76

New Member
Jul 16, 2004
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Am having a new TT bike built up this week and am fitting Zipp 808 Tubulars. I am wondering if any one has bought valve extenders for these wheels that fit a co2 inflating system.

I was hoping to get valve extenders that allow removal of the core so they are easily deflated or inflated as required.

The problem is these wheels are 81mm deep and the longest extenders seem to be 50mm which I dont think will allow much valve for my floor pump. And all other longer extenders I have found wont accept co2 adapter.

I am not wanting to fit a pump to the frame as I will be using an xlab bottle co2 carrier that mount behind the seat.

Any advice from people as to where I can buy suitable extenders would be greatly appreciated.