then i wont have to use extender …tia
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I just received a pair of HED Alps and wondered the same. I sometimes have problems pumping the tires tom 8bar with the extender.
Felix
Use it! No valve extender=better.
-C
yeah, if you have clinchers why not. Just make sure you have some spares if you travel because they aren’t always easy to find.
although at 8.00 it might just seem a lot to pay to not use the extenteders …
yeah if you’re training on them $8.00 is a lot but if you’re only racing I doubt you’ll encounter many flats so it’s worth it. Good valve extenders, such as the Vittoria type where you actually take the valve core out (only work on some tubes) are worth it but many others can be a pain in the ass. If you can get the 80mm tubes I’d say go for it.
i notice these tubes 80mm are much heavier than reg tubes…but ill carry 1 because those valve extenders look scary if you flat
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a follow up - if I carry one to use with a front Alps, could I (if necessary) use it if I flatted a rear disk? My thought was that the valve may protrude out the side of the valve opening, but I could live with that (one less headache of carrying 2 different types of tubes). Not sure if pinching would be an issue when I tried to inflate it if it was sticking out the side of the valve opening, as I usually have to bend a 60mm vale a bit to get the inflator to fit on it.
Yep- use them. I have 404 clinchers and use the Vredistein 80mm tubes. They are “standard weight” tubes, not lightweights, which is a good thing (light tubes are much much more prone to flats). The 80mm stems allow me to not use any extenders. I still don’t understand why tubular tires aren’t available with these ultra long valves, considering that most tubular rims these days are deep dish carbon. Tufo has the next best solution with their removable cores. I just hate using valve extenders that aren’t able to close shut (like the Zipp extenders). They have a constant slow leak… not good in my book.
For a spare, I use one of the valve extenders that does not move the core out to the end of the extender. I install it with teflon tape so that air does not leak when you pump it up. The reasoning for this is that all you need to do to use it with the disk is unscrew the extender.
The valve extenders that move the core out to the end of the extender are better for primary use in the front wheel if you’re using sew ups. But if you use this kind of an extender for a spare when you have a rear disk, then you need the have the core removal tool with you, unscrew the core, unscrew the extender, and then reinstall the core on the stem before you can use it with the disk. Not something I want to deal with during a race.
Since you mention tubes, I assume you’re using clinchers. The long stemmed tubes are better for installing on the wheel, but not for use as spares. Even if you want to have two tubes with you as spares, say for an IM, you’d be better using the core-less valve extender on both rather than one normal tube and one long valve tube since then you are equipped for two flats on either the front or rear, rather than one on each.
Trying to force a long extender into a disk is a really bad idea, I doubt it will work.