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File: old peugeot premier.png (2.47 MB, 1203x899)
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A lot of old road bikes I'm looking at have an extra tube next to the seat tube. What is it and what does it do?
>>
>>1497918
It's a frame mounted pump. It's used to pump air into the tyres.
>>
>>1497918
You killed a thread to ask something that goesin /bqg/. Delete your thread and ask there, and I will answer.
>>
>>1497918
thats a pump you big dum dum
>>
>>1497922
look out everyone the thread police is here
>>
>>1497921
why on earth would anyone do this?
>>
>>1497978
Because punctures are a thing that happens.
>>
>>1497978
so they don't have to hold it in their hands, dummy
>>
>>1497978
Wheels and tire compounds have come a long, long, looooooong way in the last fifty years and roads are in relatively good repair compared to the 1970s. Rims were extremely easy to permanently damage. There weren't any cellphones and not much in the way of public transportation in most places. The cycling shoes of the time were even less suitable for walking than what we have now.

Flats were more common and you had fewer options for dealing with them. Compact pumps did not exist. CO2 cartridge pumps did not exist.

You either patched it and pumped it back to max inflation, or you walked home barefoot to save your socks.
>>
>>1497986
Flats are still common enough that one should always ride with a spare tube or a patch kit, and a pump.
>>
>>1497988

This entire mentality is cancerous.
>>
>>1497982
This made me lol more than it should have
>>
>>1497990
>being able to deal with the most common problems is cancerous
jesus fucking wept. do you call mommy to come get you when you pinch flat from being a fat fucking retard? god damn.
>>
>>1497994

I walk out.

Serious question. Why do you feel so threatened by the idea? Is your life so mis-arranged that you can't afford to spend a few hours walking?
>>
>>1497994
>>1497995
You 2 gon fuk or naw
>>
>>1497922
>You killed a thread
A thread that *checks the archive* was over a week old and had zero replies.

You're that tripfag loser who's decided that his purpose in life is to be king of BQG, aren't you?
>>
>>1497995
Do you only ride like 20 miles lmfao
>>
>>1498017
>riding for hours at a time when cars exist
I too hate the idea of ever being able to have an erection.
>>
>>1498017

Most days are a ~25-50 mile loop
Why?
>>
>>1498020
You can walk 25 miles in a few hours? You are an incredibly fast walker. Do you have any tips?
>>
>>1498024

Be born tall
>>
>>1498031
I’m 6’3” but even I think walking 25 miles is a bit extreme. Are you sure you don’t have some secret you’re holding out on us?
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>>1498034
>walking 25 miles is a bit extreme
>>
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>>1498034
You sound fat.

And short.
>>
>>1498037
why are all americans footfags
>>
>>1497994
>when you pinch flat
LOL,FUCKING PLEB HOUR RITE NOW
?????
>>
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why has nobody thought of making the bike itself an air pump? just unclip the hose from under top tube, attach to valve and pump your seat or something like that
>>
>>1500589
Today’s web research project: the old Odyssey seatpost w/ integrated pump
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>>1500589
>and pump your seat
I'd rather just carry a mini pump in my pocket.
>>
>>1497922
hi!
>>
>>1498035
>>1498031
>>1498020
That's a 5 hour walk at a steady 5km/h pace. Sure, anyone CAN walk that. Why would you choose to though? Do you have nothing else going on in your life that you can dedicate half a day to walking?
>>
>>1502389

Have you so mis-managed your life that you can't afford to spend half a day walking?
>>
>>1502393
If by mis-managed you mean have daily responsibilities and obligations, yes.
>>
>>1497918
6/10, troll was successful
>>
>>1502394

If your daily responsibilities and obligations are so pressing that you cannot afford to enjoy a few hours of unscheduled interlude then yes, you have mismanaged your life entirely.
>>
>>1502414
True, you could just ask your mom to put the leftovers in the fridge.
>>
>>1502414
You guys may not like it, but this is what peak retard looks like.
>>
>>1502426
>>1502601

This is what poverty looks like from the inside.
>>
>>1502393
> spend half a day walking
I'd rather spend it riding. If I wanted to walk I wouldn't have brought my bicycle.
>>
it's for strength
>>
>>1502609
You're the one who would rather spend 3 hours walking his bike home than spend 30$ on a frame pump. Jesus, you must make less than 10/hr.
>>
Is it possible to have a Fixie with a roadbike fork offset?
I want a Fixie style frame, simple and less likely to be stolen, but I want of more of a laying down/aggressive posture for riding.
And can you have staggerd tires on road/fixie bikes?
>>
>>1498019
then what the fuck are you doing here?
>>
>>1502613
This post will be ignored by the walking anon because he is absolutely BTFO by this simple logic.
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>>1505169

Just fuck off.
>>
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>>1505169
Wtf is wrong with you?
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>>1505169
no there are rules and laws the prevent it entirely
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>>1505367
>>1505368
>>1505374
Thanks for the help, guys
>>
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>>1505527
without horizontal fork ends (track ends) your gearing options are severely limited
as the length of chain and thus its tension is set almost entirely by the size of the chain wheel
and semi horizontal drops outs only really allow a few teeth worth of tension adjustment either way

for the purposes of making a single speed bike a mono directional chain tensioner is fine
they are very easy to find and attach directly to the derailleur hanger

for a fixed gear bi directional chain tension is important even if you dont plan on rely entirely on back pressure on the pedals to slow the bike
very few exist and are mostly for industrial applications .eg ROSTA Tensioner and Roll Ring
>>
>>1505169
I suspect this is some kind of machine learning bot that's stringing random words together.
>>
For fucks sake, stop it with the ghost bumping.
>>
>>1497918
pump
>>
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>>1517750
>>
>>1505169
>but I want of more of a laying down/aggressive posture for riding
>with a roadbike fork offset
so you want a track bike with a road fork? but why? Can't handle the agility of track forks?
>>
>>1497988
> Flats are still common enough...
I would disagree. Flats are super uncommon. I think I have flatted three times in the space of 3-4 years. But it makes sense to ride with a spare tube, small tyre levers, small co2 cartridge and co2 inflator for the very rare occasion you do puncture.
>>
>>1502414
>that you cannot afford to enjoy a few hours of unscheduled interlude
I would rather spend those few hours riding bikes, playing video games, fucking my girl friend, sleeping or working.
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>>1521135
>my girl friend
a likely story
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>>1498015
Yeah he does this on several boards. Always pushing his pet racism memes too
>>
>August the 18th
>Fell off near Bovey Tracey
>>
>>1531145
elaborate
>>
>>1505169
That's an abomination. Why ruin perfect track geometry.
>>
>>1498019
You suck
>>
>>1497988
only applies to hardcore anglocentric road cycling and touring where you're so far away from home you don't want to risk it
otherwise if you just do some errands a couple km away you won't need it, in fact it will be more inconvenient to find a place to stop and work on your bike in an urban environment
if your bike isn't a total pos and you inflate your tires and you don't ride like a retard your tires will go on for thousands of km with hardly any risk of getting even a single flat
>>
nigger
>>
>>1544630
what does "anglocentric cycling" mean? british people are the laziest fattest people of europe lmao.
>>
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>>1544657
yeah right, britbong has a huge racefag scene with various amateur and pro road races and track cycling and hill climbs and cyclocross etc, team ineos, team gb etc, several huge bike retailers like wiggle/crc/ribble/merlincycles/planetx etc
i mean more broadly speaking the anglosphere and a few other countries where cycling has a whole other meaning compared to places like sweden, you wouldn't see a scandinavian branch of GCN any time soon
>>
https://en.wikipedia.org/wiki/Edward_Pratt
this guy just happens to be british
i think i have only seen brits and germans who do the insane type of touring where they ride around in south america and asia etc
>>
>>1544630
>going for a normal ride 4-5 hours away from home is "hard core"
I want NATO abolished for the sole reason that Putin will then invade Denmark and the Netherlands and turn them into gulags and novichok test sites and finally get rid of the unrace menace
>>
>>1505169
>I want of more of a laying down/aggressive posture for riding
so a track bike? there are some with like a 72.5-73 degree head tube angle much like a typical road bike, doesn't have to be 74+ degrees
>>
>>1505169
>I want a bike that's less likely to be stolen
>posts $6000 bike
I want a pony too, anon
>>
>>1544630
Imagine being so much of a fathanded retard that you think turning your bike upsidedown to patch a flat is hard.
>>
>>1544828
>turning your bike upsidedown
have fun scuffing your saddle and cockpit against the asphalt
>patch
i hope you mean change the tube because patching it is poverty tier and time consuming
>>
walking a short distance to get home is no big deal
once you get home you can change the tube and install it perfectly even and balanced to improve performance and reduce the risk of flatting
if you change the tube away from home it will take at least as much time as walking home and it will be a sloppy installation
>>
and the weight savings and increase in cargo capacity from not carrying a flat repair kit is a nice bonus
people pay good money to save a few grams
>>
and you can probably keep riding a short distance at a reduced speed because most of the time it's not a full blowout it's just a slow leak
>>
>>1544833
>if you change the tube away from home it will take at least as much time as walking home and it will be a sloppy installation
I want dutch people removed from planet earth's biosphere preferably launched directly into the sun
>>
>>1544832
>time consuming
the glue dries almost instantly. it takes only like a minute or two longer than just switching out the tube.
tubes weigh a lot. a patch kit weighs very little.
>>
>>1544833
>if you change the tube away from home it will take at least as much time as walking home and it will be a sloppy installation
you must be the most retarded person on earth.
>>
>>1544861
it's not an adequate solution for road bikes
the tube might not hold air as well as it should be and the patch could affect the suppleness and the patch won't fix larger cuts and blowouts
a minute or two sounds optimistic and the overall process will likely take well over 10 minutes
you still need to faff with a mini pump or co2 inflator
preventative measures are better than applying a bandaid solution, if you have good rim tape, good inner tubes, good tires you will get punctures very infrequently

>>1544862
you probably ride a dirtbag bike with crusty old tires
>>
https://www.topeak.com/global/en/products/mini-pumps/230-micro-rocket-carbon
>Volume Per Stroke: 20 cc
have fun getting your tire up to 100+ psi
>>
>>1544872
>going over 100psi ever
get with the times gramps
>>
>>1544833
>>1544834
>>1544836
>>1544870
you're the biggest retard around, please stop posting and learn about bikes
>>
>>1544877
>falls for GCN's shilling for wider tires
>rides ridiculous 65 psi instead of manufacturer's 95 psi minimum
>needs to stop all the time and fix flats

>>1544878
it's common knowledge to replace the tube instead of patching it, maybe patching them at home instead of throwing them in the trash if you're frugal or environmentally conscious
>>
>>1544880
>implying 19mm tubulars for road ever made sense
>>
>>1544882
gp 5000 25-28mm 95 psi minimum
gp 5000 32mm 85 psi minimum
>>
>>1544880
>manufacturer's 95 psi minimum
"recommended" on my road bike is 85 and that's for "average" (aka fat) people

also
>having tubes
>current year
lel
>>
>>1544842
some /n/ neckbeards are just as bad
they cope with their 80s road bikes and 90s mtbs saying they're just as good as modern bikes
all-city has air hardened steel frames and tapered carbon forks

https://www.bikeradar.com/reviews/bikes/road-bikes/all-city-zig-zag-review/
>The handling is impeccable. On a sweeping descent at 65kph my riding line to hit the apex of the bend was taking me near a deep, dangerous-looking pothole that I wanted no part of. Minimal steering effort and a little braking took me safely into a much better line.
90s mtb fags commute at 10-25kph
they wouldn't dream of exceeding 40kph on the flats and 65kph on descents
>>
>>1544906

65kph isn't exactly a high speed descent...

anyway that has more to do with wheel stiffness than frame characteristics. 90s shitrims were really bad. Tapered steerer helps a lot too though, yeah.
>>
>>1544910
the frame matters too
https://forums.mtbr.com/clydesdales-tall-riders/anyone-ride-true-true-temper-ox-platnum-frame-864077.html#post10655958
>>
>>1544920

I haven't ridden OX plat. I've owned a couple of nice tange and reynolds frames but they were definitely not as stiff as a modern alu bike, never mind carbon.
>>
>>1544926
>definitely not as stiff as a modern alu bike, never mind carbon
true
i got triggered by >>1544879 so my point is modern high end steel can also be stiffer than most older bikes
>>
>>1544833
>if you change the tube away from home it will take at least as much time as walking home and it will be a sloppy installation
speak for yourself cunt.
>>
>>1497918
makes it stronger
>>
>>1544883
Stop spreading fake news, beginners could believe it.

The optimum pressure depends on the terrain smoothness, the weight of the rider and bike. High pressure ist inefficient on most real world roads.
>>
>>1497988
>spare tube
Laugh at the tubefags.
>>
>>1497937
>>1498015
peepee poopoo
>>
>>1552145
it's on continental's website, i just said the minimum because shitlord casuals like to ride with ridiculously low pressure below the minimum
>>
if you can't ride above the minimum pressure on a first world country road, you're an incredible pussy who wants to ride a couch, the tires and carbon fork will mute any perceivable road buzz, anything beyond that like carbon handlebar/seatpost/frame is just gravy
>>
gp 5000 are grippy and compliant as fuck with carbon particles that conform to the imperfections in the road, you filthy casuals probably ride with cheap shit tires
>>
i'm closing some of my tabs, including this one. bye. /n/ is so fucking slow that threads drag on for months, it's like a mental prison. and the computer resource usage is too high for my aging pc even though i'm merely running a bunch of browser tabs, windows explorer and notepad.
>>
>>1552318
>shitlord casuals like to ride with ridiculously low pressure below the minimum
Unironically the truth but they don't know any better, tryhard amateurs on the other hand fill up to right up to the maximum rated psi.
>>
>>1497921
>he doesn't put helium into his tires
lol later nerd
>>
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>>1552325
>generic carbon particles and not superior made in Japan folded 100,000 times

eat my rice bran ceramic compound, krautlet

https://www.youtube.com/watch?v=JoC3EU_H2tc
>>
>>1544906
>90s mtb fags commute at 10-25kph

hahaha, you are fucking retard, but it's fine, the cycling industry needs idiots like you
>>
>>1505169
Just do it. What 's your problem?
>>
hello again
>>
>>1564387
Why?
>>
>>1505169
i'm digging the clear pedals
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>>1558228
see >>1566332 dumb e-statter, even tryhard roadies can't hit 32kph, good luck with your shit ass bike with flat pedals etc
>>
oh great, another thread by the autistic ghostbumper to hide
>>
https://archive.nyafuu.org/n/thread/1497918/
jfc i've been here for months and you won't let it die
bye
>>
bumping these but i'm leaving the thread you can probably find me in /bgq/ if you want to have a go at me
>>1544630
>>1544659
>>
>>1574610
/bqg/
>>
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What's this tab, opposite the canti post?

I've seen a bunch of doodads on old steel frames, but this one's new to me.
>>
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>>1574964
I'll note that it's only on one side.
>>
>>1574964
I suspect it's for a bottle dynamo taillight?
>>
>>1575000
Yeah, that makes sense. Seems obvious, in retrospect.
I've only ever seen them use shitty clamps, but I was able to find other pics where there's a braze-on for it.
Thanks anon.
>>
>>1544630
This is the same person who is arguing that flats never happen in another thread right now
>>
>>1544630
>in fact it will be more inconvenient to find a place to stop and work on your bike in an urban environment
Just do it on the sidewalk, you absolute pussy. You're doing a flat, that's it, not a complete rebuild
>>
>>1508064
no :)
>>
>>1581857
>What you lose in marginal gain on smoothness and a slight weight increase, you get back in not standing beside the road fixing punctures and I had zero flats whilst using both sets of tyres on the rutted roads in Surrey and Kent.
https://www.cyclingweekly.com/reviews/tyres/continentals-grand-prix-5000-tubeless-tyre-14-years-making
>>
>>1498019
Bump
>>
>>1586352
I have tubed gp5k’s and I haven’t gotten a flat in 1000 miles. Not that I got a flat before that, that’s when I got them.
>>
>>1588730
You realize the initial 1000 miles or so on ANY tire are going to look better for flat resistance than the final few hundred miles when they're shredded to pieces and you're trying to milk another month out of them and you finally get pissed at the constant flats and go "these tires suck" and check them, right?
>>
>>1588734
https://www.bicyclerollingresistance.com/specials/grand-prix-5000-endurance-test
>Again, still no flat tire yet with this pair of Grand Prix 5000.
you could simply not be a cheapskate and replace them when the tread wear indicator says so or if they took a lot of damage prematurely, a fuji touring anon put in like almost 20000 km on the stock tires and then wanted to cheap out on his tires, if a reasonable person has the time to put in like 1000 hours of riding, and the money to spend on the food to make up for the calories burnt, they should simply be able to afford to buy a high end pair of tires every so often
>>
>>1588910
I don't know what you're trying to argue here. I'm not telling anyone not to get good tires. My tires cost more than reddit5ks. I'm just saying a one-off personal anecdote based on the first 1000 miles isn't terribly useful data.
>>
dumb ghostbumper
>>
>>1591486
wait... how did this post get bumped? wheres the post?
>>
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>>1591486
>>
>>1594464
https://archive.nyafuu.org/n/thread/1497918/#1594459
>>
>>1594506
>https://archive.nyafuu.org/n/thread/1497918/#1594459
Oh





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