# Did you just ShartQ?
**URL:** https://tarck.cc/t/did-you-just-shartq/23
**Category:** Bikes
**Created:** [August 1, 2018, 2:31am UTC](https://tarck.cc/t/did-you-just-shartq/23 "2018-08-01T02:31:38Z")
**Posts on this page:** 20
**Page:** 960
### Author:  [@Dr\_Jart\_Attack\_PhD](https://tarck.cc/u/Dr_Jart_Attack_PhD)
#### Post date: [September 28, 2022, 8:05pm UTC](https://tarck.cc/t/did-you-just-shartq/23/19240 "2022-09-28T20:05:58Z")
I haven’t bought disc brake pads in years apparently, what is the model number for whatever superceded Shimano B-01s?
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### Author:  [@Master\_Stabby](https://tarck.cc/u/Master_Stabby)
#### Post date: [September 28, 2022, 8:31pm UTC](https://tarck.cc/t/did-you-just-shartq/23/19241 "2022-09-28T20:31:55Z")
If you’re contamination is volatile, yes. Don’t breathe the smoke.
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### Author:  [@halbritt](https://tarck.cc/u/halbritt)
#### Post date: [September 28, 2022, 8:39pm UTC](https://tarck.cc/t/did-you-just-shartq/23/19242 "2022-09-28T20:39:21Z")
This is a longshot, but here goes. My drivetrain is making a very slight clunk every 3 or 4 pedal revolutions. Seems somewhat random, but is super annoying. I’ve checked all the things and can’t seem to identify a cause. I think most obviously, I thought it might be a quick link, or hanger misalignment. I’ve inspected everything, aligned stuff, examined the rear mech and whatnot and can’t seem to find the cause. Happens on the big ring and the small ring and on just about any cog, though is mostly noticeable on the smaller ones.
Any ideas?
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### Author:  [@Crustradamus](https://tarck.cc/u/Crustradamus)
#### Post date: [September 28, 2022, 8:41pm UTC](https://tarck.cc/t/did-you-just-shartq/23/19243 "2022-09-28T20:41:19Z")
Yeah I’d say that’s a chain issue based on your description.
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### Author:  [@ryker](https://tarck.cc/u/ryker)
#### Post date: [September 28, 2022, 8:42pm UTC](https://tarck.cc/t/did-you-just-shartq/23/19244 "2022-09-28T20:42:24Z")
11-34 cassette? Shimano has had some quality problems with these.
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### Author:  [@adem](https://tarck.cc/u/adem)
#### Post date: [September 28, 2022, 8:44pm UTC](https://tarck.cc/t/did-you-just-shartq/23/19245 "2022-09-28T20:44:28Z")
> [@Dr\_Jart\_Attack\_PhD](#):
>
> I haven’t bought disc brake pads in years apparently, what is the model number for whatever superceded Shimano B-01s?
B03S, which has itself been superseded by B05S-RX
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### Author:  [@jeffro](https://tarck.cc/u/jeffro)
#### Post date: [September 28, 2022, 9:39pm UTC](https://tarck.cc/t/did-you-just-shartq/23/19246 "2022-09-28T21:39:44Z")
> [@halbritt](#):
>
> … annoying. I’ve checked all the things and can’t seem to identify a cause. I think most obviously, I thought it might be a quick link, or hanger misalignment. I’ve inspected everything, aligned stuff, examined the rear mech and whatnot and can’t seem to find the cause. Happens on the big ring and the small ring and on just about any cog, though is mostly noticeable on the smaller ones.Any ideas?
If not the quick link, maybe another link is tight? Usually causes a noise as the tight link struggles through the RD pulleys.
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### Author:  [@Andrew\_Andeson](https://tarck.cc/u/Andrew_Andeson)
#### Post date: [September 28, 2022, 10:46pm UTC](https://tarck.cc/t/did-you-just-shartq/23/19247 "2022-09-28T22:46:51Z")
Stiff link is my guess too. Just work the whole chain through your hand, should be easy as you’re a known waxer, and test for any stiff link. You also might be able to see it move the derdercage when you spin the cranks backwards.
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### Author:  [@Perlhammered](https://tarck.cc/u/Perlhammered)
#### Post date: [September 29, 2022, 12:45am UTC](https://tarck.cc/t/did-you-just-shartq/23/19248 "2022-09-29T00:45:23Z")
> [@Master\_Stabby](#):
>
> If you’re contamination is volatile, yes. Don’t breathe the smoke.
Setting the pads alight seems to have solved the lack of power as well as the howling. Gave everything (pads, rotor, caliper) a thorough cleaning in alcohol too, for good measure
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### Author:  [@blackholelectron](https://tarck.cc/u/blackholelectron)
#### Post date: [September 29, 2022, 2:10am UTC](https://tarck.cc/t/did-you-just-shartq/23/19249 "2022-09-29T02:10:52Z")
the final move is to soak everything in alcohol/combustible fluid and THEN light on fire- soak it out, then burn away what remains!
if this contamination resurfaces without you opening the closed hydraulic system, then you have a leaky caliper on your hands, and the best solution for that is a 1-piece XTR or newer design that doesn’t leak or crack its ceramic pistons randomly
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### Author:  [@paris](https://tarck.cc/u/paris)
#### Post date: [September 29, 2022, 2:15am UTC](https://tarck.cc/t/did-you-just-shartq/23/19250 "2022-09-29T02:15:52Z")
If only all problems could be solved with the cleansing power of fire.
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### Author:  [@Perlhammered](https://tarck.cc/u/Perlhammered)
#### Post date: [September 29, 2022, 2:21am UTC](https://tarck.cc/t/did-you-just-shartq/23/19251 "2022-09-29T02:21:45Z")
Yeah, that’s definitely the next step. Trying to exhaust all options before buying new parts
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### Author:  [@cheese](https://tarck.cc/u/cheese)
#### Post date: [September 29, 2022, 3:07am UTC](https://tarck.cc/t/did-you-just-shartq/23/19252 "2022-09-29T03:07:46Z")
they can, but sometimes it involves the entire bike and subsequently the wallet
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### Author:  [@yonderboy](https://tarck.cc/u/yonderboy)
#### Post date: [September 29, 2022, 3:13am UTC](https://tarck.cc/t/did-you-just-shartq/23/19253 "2022-09-29T03:13:52Z")
[ ](https://cdn.tarck.cc/original/3X/6/c/6c1ac631ca0d8071aa0b50542db6ceb7220d0936.gif)
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### Author:  [@halbritt](https://tarck.cc/u/halbritt)
#### Post date: [September 29, 2022, 4:50am UTC](https://tarck.cc/t/did-you-just-shartq/23/19254 "2022-09-29T04:50:21Z")
> [@ryker](#):
>
> 11-34 cassette? Shimano has had some quality problems with these.
11-40 xt cassette with a tailhook extension.
> [@jeffro](#):
>
> maybe another link is tight? Usually causes a noise as the tight link struggles through the RD pulleys.
Maybe…
> [@Andrew\_Andeson](#):
>
> Stiff link is my guess too. Just work the whole chain through your hand, should be easy as you’re a known waxer, and test for any stiff link. You also might be able to see it move the derdercage when you spin the cranks backwards.
Okay fine.
A few months back, I did get saltwater on the drivetrain and left it there for a while. Could be that the chain is done or has a stiff link that’s not the quick link. I did run it slowly backward though, which usually shows a stiff link.
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### Author:  [@lofarkas](https://tarck.cc/u/lofarkas)
#### Post date: [September 29, 2022, 7:16pm UTC](https://tarck.cc/t/did-you-just-shartq/23/19255 "2022-09-29T19:16:27Z")
> [@halbritt](#):
>
> Okay fine.
>
> A few months back, I did get saltwater on the drivetrain and left it there for a while. Could be that the chain is done or has a stiff link that’s not the quick link. I did run it slowly backward though, which usually shows a stiff link.
Just swap in a different chain and see if the noise goes away. If it does you know for a fact that it’s the chain.
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### Author:  [@Bootus](https://tarck.cc/u/Bootus)
#### Post date: [October 1, 2022, 3:20pm UTC](https://tarck.cc/t/did-you-just-shartq/23/19256 "2022-10-01T15:20:46Z")
Is 49mm an okay chainline for a 1x setup on a 142 rear with a 9 or 10 speed cassette? It’s either that or moving the ring back to the inner position and buying a wider bottom biscuit.
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### Author:  [@rancid\_burple](https://tarck.cc/u/rancid_burple)
#### Post date: [October 1, 2022, 4:07pm UTC](https://tarck.cc/t/did-you-just-shartq/23/19257 "2022-10-01T16:07:15Z")
I used road outer position (~46mm) on a 130mm spaced bike successfully for years. That would be really close to equivalent with 49mm on 135/142.
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### Author:  [@halbritt](https://tarck.cc/u/halbritt)
#### Post date: [October 1, 2022, 4:09pm UTC](https://tarck.cc/t/did-you-just-shartq/23/19258 "2022-10-01T16:09:25Z")
> [@lofarkas](#):
>
> Just swap in a different chain and see if the noise goes away. If it does you know for a fact that it’s the chain.
Didn’t have a spare chain, but pulled it to lube and inspect. Couldn’t find a stiff link, which I’d already looked for but I did find a missing roller.
Fixed that and waxed and now all is well.
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### Author:  [@Shamp](https://tarck.cc/u/Shamp)
#### Post date: [October 1, 2022, 4:33pm UTC](https://tarck.cc/t/did-you-just-shartq/23/19259 "2022-10-01T16:33:24Z")
It’ll probably be fine. I think Shimano specs 52mm for 142 rear, but I figure 49mm will work better in the upper ranges of the cassette where it seems that a shitty chainline has more of an impact.
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