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Zipp 404s-valve question
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 2010-05-18 5:02 PM |
Champion  19812     MA |  Subject: Zipp 404s-valve questionI got clincher Zipp 404s on my new Ordu. Do most of you use valve extenders with plumbers tape or buy tubes with longer stems? |
| 2010-05-18 5:03 PM in reply to: #2866755 |
165 | Subject: RE: Zipp 404s-valve question Longer valve stems, but always carry extenders in your gear just in case you have to borrow a tube at a race. |
| 2010-05-18 5:09 PM in reply to: #2866755 |
| Subject: RE: Zipp 404s-valve question I've got Mavic's, not Zipps, but they're close to the same size. I get 70mm (if I can find them) or 80mm valve stems. You won't be able to attach the pump with 60mm stems. |
| 2010-05-18 5:09 PM in reply to: #2866758 |
Champion 19812 MA | Subject: RE: Zipp 404s-valve question MagicNC - 2010-05-18 6:03 PM Longer valve stems, but always carry extenders in your gear just in case you have to borrow a tube at a race. I was thinking that might be the way to go. Do you bring plumbers tape as well? Anywhere to get them cheaper as those tubes are expensive? But much cheaper than a new tubular tire on my old Zipp 404s. |
| 2010-05-18 5:37 PM in reply to: #2866755 |
| Summerlin NV | Subject: RE: Zipp 404s-valve question I'm glad you brought this up. Today I went to fill up my 808 and ya I can tell that air is going in but the pressure valve on my pump is reading anything. So after talking to a friend who was a pro rider suggested that I try Vittorias Valve extenders over the Zipp ones. With Vittorias you do not have to use plumbers tape. All you have to do is get tubes like Continental Race tubes or any tube with a removable valve core, screw on the Vittoria Valve extender re-install the vale core to the top of the extender and boom you have an extender that works like a regular tube with out one. The other thing I do like that was mentioned above is pre attach an extra valve extender to a spare that is long enough for my 808 rear and which will also work with my 404 front. If I get two flats then I maybe S O L or I could just carry a 80mm tube as a back up for the front. |
| 2010-05-18 6:22 PM in reply to: #2866755 |
Master 1222 Lafayette, IN | Subject: RE: Zipp 404s-valve question I got these from Trisports. ' Item Qty Qty Qty Expected Number Description Ord. Shp. Bck. By ---------- ------------------------------ -------- -------- -------- -------- 13-0501 Deluxe Valve Extenders 3.00 3.00 0.00 40MM Removable Core Size=40mm I use these for my Hed 60's so you could use the same size. But just like what was said above, once you install these, they act like regular stems. I have never had one leak and I did try to go with 80mm stems but they were hard to find where I live and ride. So I buy 48mm conti tubes and use these. I set up the third one on my spare tube. I use the Teflon tape, but I think they would seal without it. I just want the extra insurance, but then again I have been accused of overkill. When I had a deck I had built inspected, the inspector said that in case of a tornado, grab my family and run under the deck! Edited by Gregkl 2010-05-18 6:25 PM |
| 2010-05-18 6:48 PM in reply to: #2866758 |
Master 2406 Bellevue, WA | Subject: RE: Zipp 404s-valve question MagicNC - 2010-05-18 3:03 PM Longer valve stems, but always carry extenders in your gear just in case you have to borrow a tube at a race. X2 Longer valve stems. Life is too short to futz with valve extenders. Pay the extra buck. |
 2010-05-18 7:28 PM in reply to: #2866755 |
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| 2010-05-18 10:48 PM in reply to: #2866850 |
| Expert 1139 Austin | Subject: RE: Zipp 404s-valve question 702Tri - 2010-05-18 5:37 PM I'm glad you brought this up. Today I went to fill up my 808 and ya I can tell that air is going in but the pressure valve on my pump is reading anything. So after talking to a friend who was a pro rider suggested that I try Vittorias Valve extenders over the Zipp ones. With Vittorias you do not have to use plumbers tape. All you have to do is get tubes like Continental Race tubes or any tube with a removable valve core, screw on the Vittoria Valve extender re-install the vale core to the top of the extender and boom you have an extender that works like a regular tube with out one. The other thing I do like that was mentioned above is pre attach an extra valve extender to a spare that is long enough for my 808 rear and which will also work with my 404 front. If I get two flats then I maybe S O L or I could just carry a 80mm tube as a back up for the front. Got a link for the Vittoria extenders? I just got a pair of 808's and the 80mm tubes don't reach out far enough to inflate without extenders and the zipp ones are like you said, no idea how much air is going in. |
| 2010-05-19 3:23 AM in reply to: #2866755 |
| Master 2855 Kailua, Hawaii | Subject: RE: Zipp 404s-valve question I got the Kenda 80mm valve tubes... but wanted to try this : Problem Solvers Presta Valve Extenders - 50mm w/ Valve http://www.trivillage.com/protir0200.html this has a rubber o-ring so you don't need the teflon tape. Edited by metafizx 2010-05-19 3:24 AM |
| 2010-05-19 7:58 AM in reply to: #2866755 |
| Champion 9407 Montague Gold Mines, Nova Scotia | Subject: RE: Zipp 404s-valve question Michelin Latex Tubes with teflon tape and a 50mm valve extender for my Hed Alps. These tubes also come in a 60mm valve stem but it is not long enough for 55mm rims. My spare is a butyl tube with a 66mm stem which is just long enough for my CO2 chuck/crack pipe. Shane |
| 2010-05-19 8:38 AM in reply to: #2866755 |
| Subject: RE: Zipp 404s-valve question Hi Kathy. For training I use 80mm valve continental tubes on my Jet 60's. Like Fred said, I bought some latex tubes for racing and they only come 60mm, so I will use them for Race Day. My experience with two different extenders have both been crappy. I used the plumbers tape and the extenders are fine for a week or so. But after a couple hundred miles, they always seem to come loose and when I try to re-pump them it's a nightmare. So for Race Day the extenders are fine, but for continual everyday training-use I have had lots of problems with them. Just my experience |
| 2010-05-19 8:38 AM in reply to: #2866850 |
| Extreme Veteran 695 Olathe | Subject: RE: Zipp 404s-valve question x2 on Vittoria valve extenders. Found out the hard way I needed to plan for longer stems on the 404's. Luckily it was a training group ride but I ended up having to patch the tire instead of using a new tube since I couldn't air it up with the shorter stem. I got lucky. I have 80mm stems AND valve extenders in case I have to bum a tube if I kill the spares. |
| 2010-05-19 9:22 AM in reply to: #2866755 |
| Veteran 419 | Subject: RE: Zipp 404s-valve question 80 mm tubes- got them online biketiresdirect.com for $5.35 a tube-much nicer than extenders and tape IMO |
| 2010-05-19 11:20 AM in reply to: #2866755 |
| Summerlin NV | Subject: RE: Zipp 404s-valve question All you will ever need link for Vittoria Valve Extenders http://www.excelsports.com/new.asp?page=8&description=Presta+Valve+Extenders+%28pair%29+62mm&vendorCode=VITT&major=1&minor=38 Zipp 404 = 58mm add a 42mm Vittoria Valve Extender to a normal tube and your GTG Zipp 808 = 82mm add a 62mm Vittoria Valve Extender to a 48mm or 60mm tube and your GTG These come in pairs as well |
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