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View Full Version : Learn me on valve extenders please


azrider
09-18-2019, 04:47 PM
I just went to a deeper wheelset on my go fast bike and now I can no longer utilize those 60 mm tubes that worked on my 303's, so I gotta get extender.

Whats best one to get ?

Do I have to remove core?

Can i just get something that extends beyond rim and not mess with removing valve core?

m_sasso
09-18-2019, 05:12 PM
Personally I prefer extenders where the core is moved to the extender, if you have problems with the core sticking closed, no need to remove the tire/tube which will be in accessible, buried in the rim. And use silicon plumbers tape on the original stem threads to seal the extenders on well.

kgreene10
09-18-2019, 05:23 PM
I agree with m_sasso.

I’ve got two sizes of bnib valve extenders that I won’t be using. Let me know if you want a set for less than whatever they cost.

djdj
09-18-2019, 05:24 PM
Agreed. Valves can get gummed up from sealant, so it is best to keep them easily accessible. That is, buy extenders that work with a removable core, assuming your tubes have removable cores.

gibbo
09-18-2019, 05:28 PM
Silca make a nice extender, what ever brand you choose make sure you remove the core of the tube and put it into the top of the extender.

azrider
09-18-2019, 05:51 PM
Agreed. Valves can get gummed up from sealant, so it is best to keep them easily accessible. That is, buy extenders that work with a removable core, assuming your tubes have removable cores.

we're coming up on winter here in AZ so durability wins out over speed. That said, I usually opt for "thornless tubes" this time of year .........IIRC, those don't have removable cores.........what then ??

YesNdeed
09-18-2019, 05:53 PM
+1 on valve core extenders. As far as which ones, the ones I have work great! So get those :banana:

RonW87
09-18-2019, 05:55 PM
we're coming up on winter here in AZ so durability wins out over speed. That said, I usually opt for "thornless tubes" this time of year .........IIRC, those don't have removable cores.........what then ??


You can get the kind that don't have a valve. They just extend the "pipe". I've found for those that some CO2 inflater "heads" don't work with them, so make sure to test that.

https://www.probikekit.ca/bicycle-tyre-tubular-accessories/vittoria-alloy-valve-extensions/11435974.html?affil=thggpsad&switchcurrency=CAD&shippingcountry=CA&variation=11435975&shoppingpid=ATM10_060218_&gclid=EAIaIQobChMIvYj68bvb5AIVx7TtCh1i0QuKEAQYBSAB EgKM1PD_BwE&gclsrc=aw.ds

azrider
09-18-2019, 06:19 PM
You can get the kind that don't have a valve. They just extend the "pipe". I've found for those that some CO2 inflater "heads" don't work with them, so make sure to test that.

https://www.probikekit.ca/bicycle-tyre-tubular-accessories/vittoria-alloy-valve-extensions/11435974.html?affil=thggpsad&switchcurrency=CAD&shippingcountry=CA&variation=11435975&shoppingpid=ATM10_060218_&gclid=EAIaIQobChMIvYj68bvb5AIVx7TtCh1i0QuKEAQYBSAB EgKM1PD_BwE&gclsrc=aw.ds

Yeah so that's my point. If they sell extenders for non removable valve cores, then why not just use those all time ???

Mark McM
09-18-2019, 06:44 PM
Yeah so that's my point. If they sell extenders for non removable valve cores, then why not just use those all time ???

Sometimes valves don't seal properly without screwing down the valve nut. Extenders for non-removable valves require that the nut always be unscrewed (because you can't access the nut). And these extenders also make it tougher to reduce pressure, because it is more difficult to press the nut to let out a little air. I've also found that some of the cheaper versions of those extenders don't seal against the valve stem well, so they leak when inflating the tire. You can still get air in the tire, but because of the leakage the pump's gauge won't indicate properly.

My favorite valve extenders are probably Continental, because they come in a wider range of lengths so the stem length can be customized to the wheel.

kppolich
09-18-2019, 07:28 PM
I just went to a deeper wheelset on my go fast bike and now I can no longer utilize those 60 mm tubes that worked on my 303's, so I gotta get extender.

Whats best one to get ?

Do I have to remove core?

Can i just get something that extends beyond rim and not mess with removing valve core?

Extender with removable valve sore tubes. Apply a little teflon tape between the joint and tighten down the valve core on the end of the new extender.

ntb1001
09-18-2019, 07:34 PM
Another vote on Continental extenders. I much prefer that style where you install the valve core in the extender.


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SoCalSteve
09-18-2019, 07:49 PM
Or sell or give your tubes away and get tubes with 80mm valves. Life is too short to be messing with valve extenders when there is a much more seamless ( pun intended ) method.

Tubes are cheap, why mess around??? :confused:

azrider
09-18-2019, 08:24 PM
Or sell or give your tubes away and get tubes with 80mm valves. Life is too short to be messing with valve extenders when there is a much more seamless ( pun intended ) method.

Tubes are cheap, why mess around??? :confused:

wait wut........

I'm new to the deep dish game.....last I checked 60mm was longest.

...........you sir........are a genius.

Louis
09-18-2019, 08:30 PM
Here's an 80mm stem:

https://content.backcountry.com/images/items/900/QTB/QTB0006/S700CXS2325MM.jpg

Jeff N.
09-18-2019, 09:04 PM
Continental extenders work great for me. They come with a little plastic "wrench" and changing them out is a piece'o'cake.

GeorgiaOcean
09-18-2019, 09:13 PM
Yep, just bought a 5 pack of 80mm Contis on Amazon last week for $35.

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azrider
09-18-2019, 09:22 PM
Continental extenders work great for me. They come with a little plastic "wrench" and changing them out is a piece'o'cake.

yeah but then i have to carry that little tiny wrench every time I ride......ughhhhh.....

I barely remember water bottles let alone tiny wrench that looks like its used by Lego men.........

azrider
09-18-2019, 09:27 PM
Boom.....LBS to the rescue

https://uploads.tapatalk-cdn.com/20190919/8f31e692112d0229822db9bed2b68bc3.jpg


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Jeff N.
09-18-2019, 09:44 PM
yeah but then i have to carry that little tiny wrench every time I ride......ughhhhh.....

I barely remember water bottles let alone tiny wrench that looks like its used by Lego men.........Got a saddle bag? Just zip it up in there, maybe connect it to a little key chain or something. Works for me. It ain't no thang...

Louis
09-18-2019, 09:54 PM
maybe connect it to a little key chain or something. Works for me. It ain't no thang...

Yeah, sort of like this:

https://images-na.ssl-images-amazon.com/images/I/71rKMmlZO7L._UY395_.jpg

kppolich
09-18-2019, 10:20 PM
Next step for go-fast bike is Vittoria Latex tubes with Conti valve extenders.

azrider
09-18-2019, 10:21 PM
Got a saddle bag? Just zip it up in there, maybe connect it to a little key chain or something. Works for me. It ain't no thang...

I use Speedsleev

Also.......since I was in rush I didn't realize I grabbed 700x19/23 tubes.......are those ok for 25 tire? 28 tire ?

oldpotatoe
09-19-2019, 06:05 AM
Yeah so that's my point. If they sell extenders for non removable valve cores, then why not just use those all time ???

Cuz ya gotta leave the valve open..and sometimes they leak..The best are the ones that replace the valve core..

ntb1001
09-19-2019, 06:34 AM
yeah but then i have to carry that little tiny wrench every time I ride......ughhhhh.....



I barely remember water bottles let alone tiny wrench that looks like its used by Lego men.........



Not really....just buy extra extenders and put them on your spare tubes, or tubulars in advance. That what no messing around on the road....and leave the little plastic wrench in your saddle bag for just in case.




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azrider
09-19-2019, 11:08 AM
Dammit..........Will these work with 25mm tires? 28’s?? :crap:


https://uploads.tapatalk-cdn.com/20190919/4ad6f9b043d988613aab7a6d793d99be.jpg


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GeorgiaOcean
09-19-2019, 11:10 AM
25s are fine for sure. I'd expect them to be fine with 28s too, but I'm not sure I've actually tried it.

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BRad704
09-19-2019, 12:28 PM
They'll be fine. YMMV. LOL. :banana:

Really though, I've run 18-25 tubes in my 35c gravel tires and 38c Barlow Pass for many many miles with no issues.

SoCalSteve
09-19-2019, 03:20 PM
wait wut........

I'm new to the deep dish game.....last I checked 60mm was longest.

...........you sir........are a genius.

Please tell my wife...:)