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Old 05-12-08, 10:29 AM   #1
adk
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700c Tubes with Schraeder Valves?

First, a little background: I've been a casual mountain biker for years, but due to the fact that I have moved to the plains and am currently miles away from even a molehill, I caved and bought a Novara Big Buzz last night

I'm new to the idea of Presta valves. From what I understand they hold more pressure and are generally better for road biking, but I'm obviously ignorant and afraid of the big bad presta monster. Will Schraeder tubes work, or should I bite the bullet and go for presta? For reference the tires in question are Vittoria Randonneur 700x28.

Also, sorry if this has been discussed frequently, but I couldn't find much in the search function.
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Old 05-12-08, 10:35 AM   #2
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I'm confused, are you saying your bike has presta tubes and you're not sure if you want to stay with them? You can't use schrader unless you get your rims drilled to hold the larger valves, or you switch rims/wheels.

As far as I know there is no functional difference between the 2 valves, so I've always just stuck w/ what the rims allow. You can buy brass presta/schrader adapters and just leave them on your presta valves permanently if you want.
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Old 05-12-08, 10:37 AM   #3
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Take your pick...

Quote:
Originally Posted by adk View Post
First, a little background: I've been a casual mountain biker for years, but due to the fact that I have moved to the plains and am currently miles away from even a molehill, I caved and bought a Novara Big Buzz last night

I'm new to the idea of Presta valves. From what I understand they hold more pressure and are generally better for road biking, but I'm obviously ignorant and afraid of the big bad presta monster. Will Schraeder tubes work, or should I bite the bullet and go for presta? For reference the tires in question are Vittoria Randonneur 700x28.

Also, sorry if this has been discussed frequently, but I couldn't find much in the search function.
It's really dictated more by the way the rim is driled. A rim drilled for a Presta valve will only take a Presta valve (unless you enlarge the hole, which gives some people the heebie-jeebies, depending on how wide the rim is).

A rim drilled for a Schrader will only take a Schrader.

My commuter has Schraders, my touring bike has Presta. Never had a problem with either. I keep a couple of brass adapters handy (one tucked into my patch kit) so I can even fill the Presta tubes at a gas station (if I'm feeling lazy).

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Old 05-12-08, 10:39 AM   #4
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Hardy is right. You can get 700c tubes with Schrader valves, but they won't fit your rims without modifications.

In any event, there's no reason to be afraid of presta valves. Unless you have a really old pump, you shouldn't have any problems. Just remember to open the valve before you try to pump up the tire and close it when your done.
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Old 05-12-08, 11:08 AM   #5
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It's a lot easier to use a Presta valve than a car-like Schraeder valve when you get into higher pressure road tires. The main thing is that you don't lose any air from the tire when you take the pump off the valve. So, if you already have a bike with wheels that use Presta valves, that's really what you want. Ask the people where you bought the bike to show you how to use them. There isn't much to it, really. The only downside is that you need a pump that can work with Presta if you don't already have one, and also, for the most convenience, you need a "floor pump" so you can pump up the tires at home every few days - because you won't be able to pump up at gas stations.
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Old 05-12-08, 11:16 AM   #6
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Quote:
Originally Posted by Kotts View Post

A rim drilled for a Schrader will only take a Schrader.
WRONG!

My Mtn Bike has rims meant for schrader valves, and I run Priesta's in them.... No prob for 600 miles last summer.
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Old 05-12-08, 11:33 AM   #7
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Quote:
Originally Posted by devildogmech View Post
WRONG!

My Mtn Bike has rims meant for schrader valves, and I run Priesta's in them.... No prob for 600 miles last summer.
I think that's luck. Coworker's schrader rim ate a presta valve the 3rd time he rode it. Pretty easy to see where the tube gave out around the valve where it was poking through the rim opening that was too large. Not that 2 conflicting anecdotes are data but still, I wouldn't do it.
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Old 05-12-08, 11:45 AM   #8
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Easy fix.... go to the hardware store and get a rubber gromet that fits over the valve and fills the hole... they cost about $0.06 apiece
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Old 05-12-08, 12:13 PM   #9
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Quote:
Originally Posted by devildogmech View Post
WRONG!

My Mtn Bike has rims meant for schrader valves, and I run Priesta's in them.... No prob for 600 miles last summer.
Are you running 700C tubes at 120 PSI?
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Old 05-12-08, 12:40 PM   #10
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Quote:
Originally Posted by HardyWeinberg View Post
I think that's luck. Coworker's schrader rim ate a presta valve the 3rd time he rode it. Pretty easy to see where the tube gave out around the valve where it was poking through the rim opening that was too large. Not that 2 conflicting anecdotes are data but still, I wouldn't do it.
They make special adapter sleeves to fix that problem.





---

OP, I'd use the Presta valves. They're just as simple to use, and if you did want to use Schrader, you would have to re-drill your rims to accommodate the larger diameter valve or buy new rims. I don't think you'll have any problem getting used to the Presta system, just make sure you tighten the nut when you're through pumping the tires up. Also, you may have to give the valve a little flick before airing them up each time to break any remaining seal.

I'm not sure if Schrader tubes in that size are common in all shops, as I never look for them, but you'll know that any shop will have a replacement tube for the Presta in that size, so that's a plus. Another one is that you don't need valve caps, a minor convenience.

Last edited by cdotbois; 05-12-08 at 12:53 PM.
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Old 05-12-08, 01:10 PM   #11
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Quote:
Originally Posted by adk View Post
First, a little background: I've been a casual mountain biker for years, but due to the fact that I have moved to the plains and am currently miles away from even a molehill, I caved and bought a Novara Big Buzz last night

I'm new to the idea of Presta valves. From what I understand they hold more pressure and are generally better for road biking, but I'm obviously ignorant and afraid of the big bad presta monster. Will Schraeder tubes work, or should I bite the bullet and go for presta? For reference the tires in question are Vittoria Randonneur 700x28.

Also, sorry if this has been discussed frequently, but I couldn't find much in the search function.
Just get "schrader adapters" for your presta valves... that way you have the best of both worlds and you don't have drill out your rims...

they sell them at my LBS, probably online, and in some sporting goods stores like "Dicks Sporting Goods" and probably "The Sports Authority"...

http://nycewheels.com/valve-adaptor-p-s.html

I actually get them for about half that price at my LBS but that was a while ago...

Last edited by e0richt; 05-12-08 at 01:17 PM. Reason: more info
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Old 05-12-08, 05:46 PM   #12
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Quote:
Originally Posted by Bill Kapaun View Post
Are you running 700C tubes at 120 PSI?
Nope... Propper sized tubes at about 95-110 psi
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Old 05-12-08, 07:53 PM   #13
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I'm with you, Presta valves suck. But alot of 700c rims are too narrow for a regular valve.
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Old 05-12-08, 08:11 PM   #14
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Leave the adapters on the stems. I like picking them up along the roads and trails.
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Old 05-12-08, 08:25 PM   #15
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I'm with you, Presta valves suck..
I'm on the other side of the fence...I think schraeder valves suck The adapters look pretty cool, but I usually just put a piece of electrical tape over the hole for a little extra support and use prestas in schraeder rims without any adapters (road tires 105 psi.)

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Old 05-12-08, 08:53 PM   #16
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Quote:
Originally Posted by cdotbois View Post
They make special adapter sleeves to fix that problem.





---

OP, I'd use the Presta valves. They're just as simple to use, and if you did want to use Schrader, you would have to re-drill your rims to accommodate the larger diameter valve or buy new rims. I don't think you'll have any problem getting used to the Presta system, just make sure you tighten the nut when you're through pumping the tires up. Also, you may have to give the valve a little flick before airing them up each time to break any remaining seal.

I'm not sure if Schrader tubes in that size are common in all shops, as I never look for them, but you'll know that any shop will have a replacement tube for the Presta in that size, so that's a plus. Another one is that you don't need valve caps, a minor convenience.
I use the adapters from Wheels Manufacturing on my Alex 406 rims drilled for Schrader.
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Old 05-12-08, 08:57 PM   #17
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I'm with you, Presta valves suck.
I thought I was losing my mind.. thank you!
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Old 05-12-08, 11:05 PM   #18
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Quote:
Originally Posted by Kotts View Post
It's really dictated more by the way the rim is driled. A rim drilled for a Presta valve will only take a Presta valve (unless you enlarge the hole, which gives some people the heebie-jeebies, depending on how wide the rim is).

A rim drilled for a Schrader will only take a Schrader.
While it's true that a presta-drilled rim will only take presta (unless you do the surgery w/ a drill, like has been oft-mentioned -- not as big a deal as some think), it is NOT true that a Schrader rim will only take Schrader.

Remember that little knurled nut that comes on most presta's? It WORKS! Been there, done that.

To the OP -- get the presta, they're a better valve; get the adapter, too, just in case. Better to have & not need, than need & not have, y'know?
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