Pretentious French bullshit.

>>2048593 (OP)
They were ahead of their time, they found their use only a century later. No way in hell you're getting a Schrader through a modern deep dish aero wheel.

>>2048594
The other day I was standing on line getting a chop cheese at the bodega and this dude by the counter had a clapped out s-works track bike with a zipp service course stem and DT swiss deep dish rims and dura ace spd-sl pedals and some sort of schrader adapter caps on his presta cores and the bar tape looked like it had gone through ww3, I don't know exactly how that worked but it was pretty cool to see a high quality bike being ground to dust by someone who actually used it, good bikes should be ridden hard and frankensteined when they reach a certain age

>>2048601
I agree with this shit man theres a certain coolness to kinda ghetto/beat setups that are actually really nice and performance oriented. Like the drift cars of bicycles
Its fucking kino

>>2048593 (OP)
This was invented because the misguided assumption that skinny tires are faster for bike racing.
Modern rims are wide enough that you can just drill them out to fit a schrader valve

>schrader valve leaks intensify
Presta got it right by having a valve lock by design

also stem lock
>inb4 sheared Schrader valve

Works on my machine

>>2048601
Hell yeah

>>2048593 (OP)
Don't care, they just work and you can find pumps for them everywhere.
Now those stupid ass dutch thingies however…
How did they ever make it out of this fucking lowland hellhole? There's no way to even inflate those fuckers and they have zero improvement over french or car valve, I hate those with a passion.

>>2048645
>they just work and you can find pumps for them everywhere.
Strange, the only valves giving me constant troubles are these...

>>2048647
the only trouble I've gotten from a presta has been related to sealant getting into the valve core and that's easily solved by unscrewing the core, putting a little piece of paper towel on a metal toothpick, and reaming out the rubber crap stuck inside the valve with the paper towel, if you're having issues unrelated to latex sealant there is something wrong with you and not presta

>>2048652
>that's easily solved by
>a bunch of tedious bullshit
yeah or you could use a valve that just doesnt have this problem you moron

>>2048615
true and it doesn't need a retarded easy to lose cap either

>>2048694
schrader has a removable core?

>>2048711
Hell yeah, I didn't know either until I decided to put sealant goo in my lawnmowers tires

>>2048711
Yes

>laughs in Schwalbe

>>2048615
this.
Presta is superiour. I even equipped my MTB with Presta valves. Skill issue.

>>2048593 (OP)
to be fair its a less compex valve type.
>however
where they connect to the tire is weak, and the most common point of failure.
and there is little reason to use a presta valve if your tire is wider than 32 mm.

>>2048613
>This was invented because
is has no preload. As such it opens as soon as pressure outside matches pressure inside. Meanwhile this is not the case obviously for valves with pieces of tube or springs and balls. This may be a entirely academic discussion nowadays but back then when pumps and their seals made fron questionable materials were so-so it may have been a real advantage.
>skinny tires are faster
this is correct.

>>2048837
>>skinny tires are faster
>this is correct.
No they aren't, at least upto a point. Depending on the conditions there's a sweet spot which is quite thick for most conditions.
The problem is vibrations slow you down more than the lower rolling resistance from skinny tires.
A part of this is better materials and engineering decreased rolling resistance of thicker tires.
Ofc this only works upto a point and going all the way to fat tire bike diameters will slow you down again.

>>2049015
The sweet spot for normal roads is 30mm by the way.

>>2049021
IGN tested this and did find 40mm, ymmv but I'm quite confident that the optimal is higher than most people are used to.

>>2049021
You mean 28

>>2049025
literally no difference

again:
narrower tires are faster.

>>2049065
feels > reals

>>2049065
good tires are faster. they can be thin, they can be thick, they can even be not slick.

riding monster truck tires on the street in the name of watts is dumb unless you're a hamplanet who measures rides in horizontal rather than vertical distance, I know this is going to enrage the heavies but weight does, in fact, matter. even going from 28 to 32 going uphill feels like you added a drogue chute, I'll put up with the extra weight because it makes high speed descents less stressful but 32 is as high as I go