...and why?
Presta, just so all my bikes have the same valve to keep things simple (MTB & road)
IIRC presta valves are designed for higher pressures and shrader aren't.
I use shrader on the MTB but I don't run massive high pressures, usually around 35psi depending on tyres/conditions.
Can't really see it makes too much difference but my mate said if you're ever out with a puncture and your pump is shot, you could blow it up at a garage with a shrader valve
IIRC presta valves are designed for higher pressures and shrader aren't.
I've got a Schrader on my forks & rear shock & I inflate them to ..... psi
On a mountainbike the Schrader is probably better. Pressures aren't silly high and theres no risk of snapping the silly top hat off it.
All of mine are Presta though as that's what tubeless rims and valves come in.
*shrugs*
Use Presta but getting more and more annoyed with the broken & bent valves leaking.
Can't fit Shrader in many of my wheel rims.
presta is a good one to have as a spare, as it will always fit through a hole in the rim, (for your schrader running mate who forgot an inner tube) (being narrower than Schrader). possibly an argument for a stronger rim with smaller diameter holes (though I am perfectly willing to be mocked at this suggestion!)
Can't really see it makes too much difference but my mate said if you're ever out with a puncture and your pump is shot, you could blow it up at a garage with a shrader valve
I've had this - pump exploded and died miles from home. Garage airline did the job. Although nowadays many UK garages have those stupid push button machines which probably aren't so good for this as the old whooshy tube machines.
Joe
schraeder, im clumsy and kept breaking the top off presta
and that presta for high pressure stuff is bollox imho
Pesta as my mini pump seems to attached to them more easily.
The high pressure thing is rubbish! schrader valves are used in loads of high pressure applications.
Surely its all down to rim width?
Absolutely true about air suspension using Shrader - not sure if the pressure thing is only applicable to tyres, I read about it somewhere when I was thinking the same as the OP. Could be a load of pony though.
Presta for me - looks prettier.
Anybody drilling rims out?
presta, as they are easier to deflate than schraeder ones.
Arent most rims drilled for schraeder and just have a grommet to fill the hole if using presta?
Presta on all my bikes
One thing I do like with presta is the nut that screws down against the rim which helps as it stops the valve pushing downwards when you're trying to get a pump on.
Can't fit Shrader in many of my wheel rims.
Anybody drilling rims out?
Drill 'em out! I've done it to loads of rims, Mavic, DT etc. No problems at all. As for the 'strength' argument, if you saw the tiny shavings of alloy removed by enlarging the hole, you'd realise it's not valid. 😀
SHRADER (any old spelling tsk), if its good enough for my car and wheelbarrow and motorbikes its good enough for my push bike....
Presta are the work of the devil.
Presta.
UST rims, see.
One thing I do like with presta is the nut that screws down against the rim which helps as it stops the valve pushing downwards when you're trying to get a pump on.
Schwalbe inner tubes have these on the schrader tubes too.
"Anybody drilling rims out?"
Yup, just slowly and carefully so not to deform the rim or leave a big burr on the hole.
makes no difference. I use presta, as that's what all the guys I ride with use, so it just makes life easier.
One of these bikes uses Presta, the other Schraeder. Which one would you pick?
[url= 
]Schraeder[/url]
[url= http://www.toysrus.co.uk/Toys-R-Us/Bikes-and-Rideons/Bikes/Mens/26-Quake-Full-Suspension-Bike(0071886) ]Presta[/url]
schraedar on the MTBs - Presta always seem fragile to me, add mud into the equation and my chances of killing a perfectly good tube are increased dramatically
Presta on the road - anything else would just seem wrong
use a frame fit pump on the road, so no issues with sharing pumps
dezb what on earth does your post mean?
Re the garage pump thing - you *could* carry a Schrader>Presta adaptor, as you'd get on a track pump (not that I do...)
One of these bikes uses Presta, the other Schraeder. Which one would you pick?
I'd have the Hummer, then drill the rims out. 😀
[i]kimbers - Member
dezb what on earth does your post mean?
[/i]
Fudged if I know. 😕
you cryptic bastard
When trying to decide, first determine whether you're looking at a car or a bike...
Presta all the time. It saves swapping pump adaptors, most of my rims will only accept Presta and they're generally nicer to use anyway.
The argument about pressure is rubbish - shocks and forks use Schrader yet they take happily take far higher pressures than tyres.
I reckon its down to rim width, narrow rims as used on road bikes would be less stressed with smaller hole. so they use presta.
It doesn’t matter for mountain bike rim widths so either will work, but Schrader is a better more reliable valve. (You wouldn’t use presta on a car would you?)
So MTB=Schrader every time, road bike presta
It's not normally a choice I find it has more to do with the size of the hole in the rim...
If I had to choose, Schrader I can whack the compressor on it without an adapter, works well enough for cars, presta valves are too delicate, and offere no advantage so far as I can tell...
So MTB=Schrader every time, road bike presta
Ditto.
schraeder - less chance of snapping the end off when being ham-fisted
Why oh why don't DT drill the holes for Schraeder then give you a little blanker for Presta like Mavic do ?Job done everybodys happy ?
my bikes all presta, prefer schraeder - stronger
An emotive subject then
anything, my bikes are a right mismatch and continuously changing, only 3 rims won't take either and there may even be a woods valve tube kicking around in something
both valves seem to do the job
keep meaning to standardise, but it only takes a minute to turn the pump insides around
bigyinn -
presta, as they are easier to deflate than schraeder ones.
ay? use a cap with the integral removal tool and your tyre is instantly deflated!
anyway, schraders are used is loads of industrial applications, high pressure schraders are good for 2100 psi, even the cheapos used in pneumatic tyres are good for 210 psi.
i stand to be corrected but as far as i know prestas are only used in cycling and came about due to the smaller diameter of the valve body.
I use presta with alu shraeder adapters fitted to every bike I own. Best of both worlds.
Exactly how ham fisted are some of you lot so "snap" the end off a presta valve? I have had a few valve stems separate from the tube, but you would have to be a determined thicko to snap the screw thread bit.
If you're using a pump without a hose, it's not hard to accidentally damage a valve- either by knocking the top off, or by seperating it from the tube. Only ever done it once, while trying to sort a puncture in freezing rain, because I was in a hurry and my hands were frozen- which is exactly when all punctures happen 😉
Schrader, if that's how it's spelled, which I doubt, is to me just obviously the better option. The potential drawbacks are so slim- it needs a fractionally bigger hole, so could weaken some rims, though in practice it doesn't. It's more vulnerable to clogging up with mud, should you for some reason not use a valve cap, but you have to be fairly dim to do that anyway. And it's got a very slight resistance to pumping as the pump stroke has to depress the valve on its spring to open it, which in practice makes no perceptible difference. Oh, and for the roadies, it's less aerodynamic 😛
On the other hand- it's more durable, more reliable, it's a much broader standard, it'll work with every foot pump, car pump and air compressor in the world, you can fit a presta tube if you have to so you have better part availability...
Only reason I use presta is that I've gone tubeless and I'm yet to find a scheader tubeless valve- for whatever reason, presta became the standard for that, even though tubeless is where you're most likely to want to use a compressor. Grr.
Can we get this thread to 100+ so I can have cast iron proof of what being a "modern" mountain biker is please.Taa.xxx
We're coming to a consensus here - Schraeder for the ham-fisted. How exactly is Presta unreliable or non-durable (apart from when attacked with a pump by those unable to cope with mechanical items)? I see your Schraeder disadvantages Northwind, yet none for Presta apart from the supposed reliability ones or for those people who for some strange reason want to use something other than a bike pump on their tyres (to which there's a simple solution anyway).
"for some strange reason want to use anything other than a bike pump on their tyres"
Tubeless.
You also ignored the superior compatibility. And didn't give a single reason why you think Presta might be [i]better[/i].
And it's got a very slight resistance to pumping as the pump stroke has to depress the valve on its spring to open it,
How do you think the schreader valves open? Pixie dust?
And didn't give a single reason why you think Presta might be better.
Okay here's one. All one way valves, which is what both presta and schreader are, leak. It's a fact of engineering. Presta valves with their screw down bit help provide a more reliable seal that schreader which rely solely on the pressure to keep the valve closed.
Presta
Compatibility, especially since going tubeless.
Gonefishin, can you read? I was talking about schraders when I wrote that.
You can't put the MBUK 'bullet' valve caps on presta.
THREAD CLOSED
You can't put the MBUK 'bullet' valve caps on presta.THREAD CLOSED
Indeed - when you put it like that, presta is clearly the only option.
Never seen schrader with extended valve stems to fit the deep section on my roadie rims either...
i was referring to schrader valves, no experience of schraeder or schreader!
Gonefishin, can you read? I was talking about schraders when I wrote that.
On the available evidence, it appears "not very well" is the answer to that question.
Hey, Gonefishin, reading that again that was needlessly rude of me, apologies- it didn't seem that way when I wrote it for some reason.
It's a fact of engineering. Presta valves with their screw down bit help provide a more reliable seal that schreader which rely solely on the pressure to keep the valve closed.
in all honesty, have you actually noticed air leaks from schraeder tubes from the valve!?
last time i used my bike with scraeder valve was in november, since then the BB has siezed as have the rear wheel bearings. the tubes are still as hard as they ever were.
only reason i use any presta tubes is cos of tubeless. i find schraeder (or whoever you spell it) a bit more sturdy and less fiddly with cold fingers.
i'd love it if tubeless rims were sold drilled for schrader i don't see any reason why they aren't!?