Can anyone help with the proper length valve extender needed for a Zipp 808? I’d like to get the removable core extenders and wondering if the Tufo 60mm extender mounted on a conti comp valve stem will be long enough? Also, any input on other “removable core” extenders that come in longer lengths would be appreciated.
Thanks!!
Vittoria valve extenders (available from Excel Sports http://www.excelsports.com/new.asp?page=8&description=Presta+Valve+Extenders(Pair)&vendorCode=VITT&major=1&minor=31) 40mm with removable core and 80mm tubes work great. I tried many extenders and the Vittoria rocks.
thanks yeah, the vittoria extender is great but wouldn’t be long enough for my application.
I forgot to mention that I’m using tubulars so the existing valve stem on the tube is the shorter “regular length”.
Anyone with 808 tubulars…what is the valve stem length on your extender…thanks!
Try these in 90 mm length: http://www.topeak.com/products/Floor-Pumps/PrestaValveExtenderXL
no removable valve cores or teflon tape required.
I don’t think so. See this - http://www.zipp.com/OnlineStore/Accessories/tabid/58/CategoryID/4/List/1/Level/1/ProductID/79/Default.aspx?SortField=ISBN%2CISBN
Hey all,
thanks for the replies…i was trying to avoid the typical zipp extender / teflon tape route…hate to have to rip off a glued tire if I was having issues at the seal. This topeak option looks like it might be worth a shot…i found them during my initial search but didn’t realize it came in a 90mm…perfect!
Can someone confirm those Topeak valve extenders don’t require special tubes? I have the Vittoria ones, but you have to have tubes with removable cores. Unfortunately I’ve got a boatload of roadtubes, none of which have removable cores 
If these Topeaks work with any presta tube, it would save me a bunch of money and headaches 
808 's need TWO continental or victoria valve extenders-probably tufos are the same.WAAAAYYYY better than Zipp valve extenders.
Planet X do carbon valve extenders to suit standard presta valves. I have one for my PX 101 wheel on conti tempo tub. Works a treat.
Unfortunately out of stock at this time, but possibly worth mailing to inquire about future deliveries. Available to suit 50mm, 82mm, and 101mm wheels.
http://www.planet-x-warehouse.co.uk/acatalog/Online_Catalogue_Valve_Extenders_290.html
This may be a bit of a hijack, but…
I race with Zipp 606 clinchers so have used tubes with 80 mm valves. I don’t need the extender in the front (404) and I used the zipp extender for the rear. When I got a flat in a race last year, the tube didn’t completely deflate. The zipp extender wouldn’t allow me to release the air so I had to remove the extender and use it to deflate the tube. Removing the extender was not easy to do when covered with sunscreen, sweat and gu. So now I am looking for an alternative (e.g. extender that uses a removable core tube).
I found these on trisports. http://www.trisports.com/devaex.html In response to the OP, if they can be combined then you can use them with the regular valve stems. If nothing else, be warned that using an extender that does not use a removable core won’t allow you to remove residual air. This could make changing a tubular even more difficult.
If nothing else, be warned that using an extender that does not use a removable core won’t allow you to remove residual air.
You could throw in a small allen wrench (2mm) or small plastic tube (the red tube off a can of WD-40 works great) in your flat kit to deflate a partially infalted tube with an “external” valve extender.