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/bqg/ - Bike Questions General

Anonymous Sun 23 Feb 2025 13:07:53 No.2034787 View View Reply Original Report

Quoted By:

phoning it in edition

Resources:
https://www.sheldonbrown.com/
https://www.parktool.com/en-us/blog/repair-help
RJ the bike guy on youtube

previous thread >>2031441

Anonymous

Anonymous Thu 20 Mar 2025 06:09:50 No.2037077 Report

Quoted By: >>2037079

>>2037066
oh shit, anon with a moser bike! nice! but mine is more modern.

Anonymous

Anonymous Thu 20 Mar 2025 06:42:12 No.2037079 Report

Quoted By: >>2037081

>>2037077
that's fine, I was just showing the 46-18 gearing.

Anonymous

Anonymous Thu 20 Mar 2025 06:57:07 No.2037081 Report

Quoted By: >>2037146

>>2037079
no, I meant there's someone here with a moser bike other than me

Anonymous

Anonymous Fri 21 Mar 2025 09:01:18 No.2037146 Report

Quoted By:

>>2037081
ah, yeah. They are great. Missed out on a good moser tk1 leader frame recently and am kinda annoyed about it.

Anonymous

Anonymous Fri 21 Mar 2025 20:23:02 No.2037202 Report

Quoted By: >>2037210

A few months back some asshat failed to steal my bike so he fucked it up a bit in frustration before giving up and stealing someone else's. He busted one pedal, mostly unthreaded the other and pitched the front brake adjuster. New pedals solved the first issue, but the second has me stuck. I bought a new set of adjusters online, but they were way too big. My levers are old decompe XCTs (bike is a 90s Univega) and I am fairly sure the adjuster is M6 sized, but I could not match the pitch to anything. I could not find any info on the decompe website. Is there a standard small sized adjuster? I also drew a blank searching for that. It seems the larger size is the standard everywhere now.

Anonymous

Anonymous Sat 22 Mar 2025 01:36:20 No.2037210 Report

Quoted By: >>2037217

>>2037202
I have no idea and it would be easiest to buy a vintage dia compe xct brake lever on ebay to replace the part, or search on bikeforums(the website).

Anonymous

Anonymous Sat 22 Mar 2025 04:20:17 No.2037217 Report

Quoted By:

>>2037210
Not the answer I was hoping for. Seems such a waste to buy a whole new lever for most of a bolt and nut. Thanks for the input, though.

Anonymous

Anonymous Sat 22 Mar 2025 09:49:19 No.2037222 Report

Quoted By: >>2037227 >>2037247

what are the best bang for buck road bike tires? i need some new ones since the old schwalbe one tires are dried out and cracked. anything hard wearing that doesn't feel slow? i heard continentals are a bitch to mount, so those are out i guess.

Anonymous

Anonymous Sat 22 Mar 2025 11:40:46 No.2037227 Report

Quoted By: >>2037253

>>2037222
Bang for buck? I buy tires on ebay or used tires. Ebay tires are pretty damn good, I have gotten 3-4 tires for 20-30 usd.
If you want quality? I tend to just run normal branded tires like vittoria rubinos, continental ultra/super sports, micheliens, etc. Kenda sells tires direct and those can be deals.

If your tires dried out and cracked you probably aren't riding far enough to warrant "hard wearing" tires. If you ride in the rain a lot look for tires that are designed for all season.

Anonymous

Anonymous Sat 22 Mar 2025 17:39:24 No.2037247 Report

Quoted By:

>>2037222
>? i heard continentals are a bitch to mount
I got my first set of Contis and they are a bitch to mount, but they're also my first kevlar bead tires.
my assumption was it was because they are kevlar bead, but since it's my first of both, I'm not in a position to say if it's one or the other

Anonymous

Anonymous Sat 22 Mar 2025 18:46:34 No.2037253 Report

Quoted By: >>2037273

>>2037227
nta but is used only way to go for poorfag?

Anonymous

Anonymous Sun 23 Mar 2025 00:16:47 No.2037273 Report

Quoted By: >>2037274

>>2037253
No, ebay new is great.
Also look at aliexpress, those are good tires, just straight form the manufacturer.
Plenty of stuff out there for 20usd a tire.
If you can't afford that.....then yeah used tires.
I spent 20 for 8 or so used tires once, 4 were too sketch for me to use but the other ones are alright.

Locally I can buy cheap bikes for a similar cost, so you could always look for used bikes with decent tires. Key with riding unknown tires is run them at lower pressures if you can that still support your weight well.

Anonymous

Anonymous Sun 23 Mar 2025 00:58:25 No.2037274 Report

Quoted By:

>>2037273
what can I buy from Ali? I use Ali all the time didn't know they had good cheap tyres
I'm in Germany so probably not too hard to find used too

Anonymous

Anonymous Mon 24 Mar 2025 16:59:53 No.2037355 Report

Quoted By: >>2037365

>>2036943
a quart of motor oil is like two bucks for the cheap stuff, which is all your freewheel needs. thats a lifetime supply if all you do is flush your freewheel every several years with it.
freeing the mechanism is one thing, but you need to flush all the garbage out. like a whole can of multispray could flush it, but it's is too thin to lube it the way it needs. oil is a lot more cost effective and mechanically effective.

Anonymous

Anonymous Mon 24 Mar 2025 18:34:38 No.2037362 Report

Quoted By: >>2037392

Looking to switch from 700x23c to 650b. How wide can I go with tire clearance? What should I look out for?

Anonymous

Anonymous Mon 24 Mar 2025 19:26:51 No.2037365 Report

Quoted By: >>2037367

>>2037355
wouldn't know where to get that

Anonymous

Anonymous Mon 24 Mar 2025 20:00:26 No.2037367 Report

Quoted By: >>2037368

>>2037365
lol where do you live that motor oil isn't readily available? there's plenty of cars in the third world so you'd have to be in antarctica or something .
must be cool to not have cars everywhere.

Anonymous

Anonymous Mon 24 Mar 2025 20:06:05 No.2037368 Report

Quoted By: >>2037370

>>2037367
Germany., Cars are not really needed. I can walk anywhere and if I can't I ride my bike.

Anonymous

Anonymous Mon 24 Mar 2025 21:12:08 No.2037370 Report

Quoted By: >>2037371

>>2037368
ok, but they sell motor oil everywhere they sell petrol. in the US, there's automotive sections at the supermarket and hardware stores that sell it. I'm quite certain motor oil is common and cheaply available throughout Germany.
any medium thickness petroleum based oil is fine, but motor oil is usually cheapest and easiest to find. don't use vegetable based/cooking oil, unfortunately it gets gummy and sticky pretty quickly.

Anonymous

Anonymous Mon 24 Mar 2025 21:17:43 No.2037371 Report

Quoted By: >>2037372 >>2037374

>>2037370
anon, you don't get it, I don't know anything about cars, I don't know where things for cars are sold, I don't think I even know of any gas stations around, I certainly havent seen any in my area.
surely there's a better alternative specifically for bikes, like in decathlon

Anonymous

Anonymous Mon 24 Mar 2025 21:18:34 No.2037372 Report

Quoted By: >>2037373 >>2037374

>>2037371
then go and check. not my problem.

Anonymous

View Same Google ImgOps iqdb SauceNAO 1713169303640019.jpg, 8KiB, 199x253

Anonymous Mon 24 Mar 2025 21:20:37 No.2037373 Report

Quoted By:

>>2037372

Anonymous

Anonymous Mon 24 Mar 2025 21:25:03 No.2037374 Report

Quoted By: >>2037375

>>2037372
you're not me
>>2037371
well, I envy you for not having to deal with cars in your life, but you live in a first world country, there are cars and gas stations and maybe regular shops that also have car stuff somewhere near you. decathlon probably does have something, but it won't do a better job and it will probably cost 3 times as much. somebody you know drives a car. ask them where they get motor oil. or your hardware store probably has gear oil or something if they don't have motor oil but in the US they do.

Anonymous

Anonymous Mon 24 Mar 2025 21:37:49 No.2037375 Report

Quoted By: >>2037376

>>2037374
I literally don't know anyone with a car. but I guess I'll just ask at a gas station or bike self repair place. thanks.

Anonymous

Anonymous Mon 24 Mar 2025 21:44:55 No.2037376 Report

Quoted By: >>2037377

>>2037375
your welcome, I'm just worried your freewheel/freehub is going to fall apart with no oil in there. I haven't had a car in decades but even before I could drive I just always flushed it out with motor oil since it's everywhere here. anything about baby oil thickness or a little more syrup-y that's petroleum based is good.
cheers.

Anonymous

Anonymous Mon 24 Mar 2025 21:48:57 No.2037377 Report

Quoted By: >>2037383

>>2037376
it might be a while to find it, but I did shoot a whole can of Multispray into it. it had penetrating oil on the list as well so maybe it will be alright.
not sure how so much gunk got inside

Anonymous

Anonymous Mon 24 Mar 2025 21:59:53 No.2037379 Report

Quoted By: >>2037386

Bicycle isn't shifting right so I put it up on the stand, dropped the chain to the smallest cog and ran through the indexes. It shifted flawlessly. When on the road it hesitates or refuses to shit into some gears and will occasionally jump a gear at random even when in a gear for as many as ten solid minutes. Any ides what might be up? The shifting is indexed, but it's not a button or indirect cable. You move the lever/cable to each index directly.

Anonymous

Anonymous Mon 24 Mar 2025 22:57:31 No.2037383 Report

Quoted By: >>2037384 >>2037388

>>2037377
>whole can
oh, that's good. for the moment it's probably fine but I don't trust it long term. when you properly flush it you'll see. the exiting flush will be solid black for a while. just keep spinning the gears and dripping oil onto the little crack, as much as it'll take without overflowing. keep doing it until the exiting oil is its regular color. leave it alone to drain for a while. you need to put something under the wheel to catch the flush to start (newspapers work good but hard to find now) and have rags ready to wipe the wheel off afterward.

Anonymous

Anonymous Mon 24 Mar 2025 23:03:23 No.2037384 Report

Quoted By: >>2037388

>>2037383
oh, do this with the wheel off the bike, with the gears upwards. actually, I've done it with the wheel on, too, just lay it on its side.

Anonymous

Anonymous Mon 24 Mar 2025 23:08:37 No.2037386 Report

Quoted By: >>2037387

>>2037379
the drivetrain is compressed and flexed with your weight on it. I always just ride around my neighborhood and go through the gears, get off, turn the barrel adjust, repeat until they all work

Anonymous

Anonymous Mon 24 Mar 2025 23:14:24 No.2037387 Report

Quoted By: >>2037390

>>2037386
Thought it might be something like that. I'm not a light dude. Thanks. Is there any particular way a bike will flex leading to to adjust in a certain way to fix it or is it basically random?

Anonymous

Anonymous Mon 24 Mar 2025 23:24:11 No.2037388 Report

Quoted By:

>>2037383
>>2037384
I did it all sorts of angles with the spray and it pretty much what happened. it was black at first
also spray has benefit of shooting with pressure so hopefully that helped.
I also shot water into it with a water pressure thing before that

Anonymous

Anonymous Mon 24 Mar 2025 23:28:59 No.2037390 Report

Quoted By:

>>2037387
ooh, interesting question. I've never noticed a pattern, but I've never thought about it. turning the barrel is easy enough. turn the one on the RD towards the gear it isn't catching.
flex happens to average weight people, too, btw.

Anonymous

View Same Google ImgOps iqdb SauceNAO file.png, 797KiB, 714x952

Anonymous Mon 24 Mar 2025 23:58:24 No.2037391 Report

Quoted By: >>2037392

Got this cheapo ali carbon stem, I wanted to shorten my stem in 10mm, might as well get a lighter one while I'm at it.
Will it explode in a thousand pieces as soon as I hit the tarmac with it?

Anonymous

Anonymous Tue 25 Mar 2025 00:22:22 No.2037392 Report

Quoted By:

>>2037362
Probably up to 650b x 30 or 32 at least. First measure the max tire you can fit with 700c, check the difference in BSD of each rim, go back that distance, and approximate the width and subtract 4mm or so.
Then go get your 650b wheel, install, and measure the room.
Well, that's what I would do.
>>2037391
It will be fine till it isn't. Just inspect it semi-frequently, or if you hear/feel something weird get a different stem.

Anonymous

Anonymous Tue 25 Mar 2025 18:37:05 No.2037416 Report

Quoted By: >>2037418

>RD-R7000
>install new pulley wheels
>now it occasionally whines
whine happens only when I shift to a larger sprocket.
7 -> 6 = whining
7 -> 6 -> 5 -> back to 6 = nothing
flipping it over and moving chain by hand revealed the guide pulley as the source of noise.
so my question is: is this caused by too much torque or not enough torque when tightening the bolt?

Anonymous

Anonymous Tue 25 Mar 2025 19:23:38 No.2037418 Report

Quoted By:

>>2037416
oh okay. I thought it's caused by excessive (or lack of) horizontal motion of the pulley wheel.
Alas, I was wrong. It was simply ReallyReallyDry™, so I added a bit grease to the bushing and we'll see. I'll go for a short ride with varying levels of power and cadence.

Anonymous

Anonymous Wed 26 Mar 2025 13:25:19 No.2037439 Report

Quoted By:

>408 replies
>page 6
who gonna bake the new bread?

Anonymous

Anonymous Fri 28 Mar 2025 06:39:28 No.2037522 Report

Quoted By: >>2037524

where the hell am I supposed to park my bike

Anonymous

Anonymous Fri 28 Mar 2025 07:55:09 No.2037524 Report

Quoted By: >>2037546

>>2037522
Next to something immobile. Then attach it with a heavy chain.

Anonymous

Anonymous Fri 28 Mar 2025 13:41:11 No.2037546 Report

Quoted By: >>2037547

>>2037524
>something immobile
Like what?
Also it will get stolen most likely

Anonymous

Anonymous Fri 28 Mar 2025 13:46:39 No.2037547 Report

Quoted By: >>2037548

>>2037546
If you lock your bike next to a less secure bike your won't be the one stolen.

Anonymous

Anonymous Fri 28 Mar 2025 13:49:09 No.2037548 Report

Quoted By: >>2037549 >>2037552

>>2037547
The problem is that I don't see any parked bikes in most places, and I don't see any immobile objects that nobody would mind if I attached my bike to them almost anywhere

Anonymous

Anonymous Fri 28 Mar 2025 14:10:24 No.2037549 Report

Quoted By:

>>2037548
Are there no bike racks or street signs where you live?

Anonymous

Anonymous Fri 28 Mar 2025 15:39:33 No.2037552 Report

Quoted By:

>>2037548
lamp posts? telephone/electric poles?
sign posts are my most common bike lockup

Anonymous

Anonymous Fri 28 Mar 2025 15:56:49 No.2037555 Report

Quoted By:

>what the fuck is motor oil, I've never saw a car, I swear
>where do I park my bike, I've never seen other bikes, I swear
fuck off retard

Anonymous

Anonymous Fri 28 Mar 2025 16:58:11 No.2037562 Report

Quoted By:

>>2034911
I have a Lezyne Pocket Drive. It's a good emergency pump and I like it a lot, but being small be prepared to do a lot of pumping to inflate a tyre.
It fits in both my burrito saddle bag and my Elite bottle cage tool case.
You could stick your tools in a plastic bottle or tool jar, but they will be rattling around in there unless you shove some padding in there too, so I wouldn't recommend it.

Anonymous

Anonymous Sat 29 Mar 2025 14:21:10 No.2037612 Report

Quoted By:

>>2037611

Anonymous

Anonymous Thu 03 Apr 2025 13:57:42 No.2038006 Report

Quoted By:

>>2035061

If it's a MTB from 2015-2025 it's probably 15x100.

Small chance it could be a "boost" MTB frame, which means 15x110.

If it's a road bike it's probably 12x100.

There's only three options bro. Thru-axles are not that expensive, you could probably try all of them. If you're super sensitive about spending money, just measure the front fork. It's going to be one of those three.

Anonymous

Anonymous Thu 03 Apr 2025 14:15:50 No.2038008 Report

Quoted By:

>>2035070

There is actually a device called the Park Tool Drive Train Cleaner. It's just a series of brushes in a little handheld bath chamber.

You fill the bath with degreaser and then pedal your bike so that it runs through the brushes.

After that, wipe down, relube, and wipe down again to remove the excess lube. (otherwise you're going to attract more grit again)

I recommend the organic orange degreaser. It's non-toxic.

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