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Main
Date: 29 Apr 2007 20:27:30
From: Jorg Lueke
Subject: Clang when hitting rough spots
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I definitely hear a loud clang when riding over rougher spots on shoddy pavement. It sounds like it comes from right underneath me. Would that be the stem bouncing a bit against the frame or some other cause. It doesn't seem like it's coming chain.
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Date: 01 May 2007 20:32:34
From: Jorg Lueke
Subject: Re: Clang when hitting rough spots
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On Apr 30, 6:32 pm, "Bill Sornson" <a...@ask.me > wrote: > Jorg Lueke wrote: > > On Apr 30, 8:34 am, "Bill Sornson" <a...@ask.me> wrote: > >> Jorg Lueke wrote: > >>> I definitely hear a loud clang when riding over rougher spots on > >>> shoddy pavement. It sounds like it comes from right underneath me. > >>> Would that be the stem bouncing a bit against the frame or some > >>> other cause. It doesn't seem like it's coming chain. > > >> It probably IS the chain, clanking off the chain stay. Other > >> culprits include your saddle bag, cleat/pedal noise (if > >> unweighting), cyclometer slightly loose in bracket, cables hitting > >> the frame, etc. etc. etc. > > >> It's the chain. :-P > > > I suppose that is easy enough to fix then. So I shoul stop being lazy > > and put in a chain guard. THEN if I still here it move on to the next > > set of causes. > > Nah, a chain guard will likely be louder! :) > > Bounce the bike on your garage floor or driveway and listen for the clang. > Look carefully and do it again. Chains move/bounce around for a reason, of > course, but if it's way too slack you should take a link (or even two) out. > You might need a shop to help with this if you don't have a chain tool; have > them show you how to use one. > > If it's not the chain, then you want to rule out anything mechanical like a > loose headset or bolt or front derailleur cage; like I said it could just be > your saddle bag bouncing around if you have one. > > Let us know what you find! > > Bill S. I am ebarassed to report the actual cause. Last night I was doing the monthly maintenance routine and suddenly I noticed that the end of my hand pump was pretty loose. Loose enough to clang right against the frame with a decent enough vibration. Duh! Today I fixed that issue and the problem is gone. Funny how one can miss the obvious.
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Date: 01 May 2007 21:30:59
From: Bill Sornson
Subject: Re: Clang when hitting rough spots
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Jorg Lueke wrote: > On Apr 30, 6:32 pm, "Bill Sornson" <a...@ask.me> wrote: >> Jorg Lueke wrote: >>> On Apr 30, 8:34 am, "Bill Sornson" <a...@ask.me> wrote: >>>> Jorg Lueke wrote: >>>>> I definitely hear a loud clang when riding over rougher spots on >>>>> shoddy pavement. It sounds like it comes from right underneath >>>>> me. Would that be the stem bouncing a bit against the frame or >>>>> some other cause. It doesn't seem like it's coming chain. >> >>>> It probably IS the chain, clanking off the chain stay. Other >>>> culprits include your saddle bag, cleat/pedal noise (if >>>> unweighting), cyclometer slightly loose in bracket, cables hitting >>>> the frame, etc. etc. etc. >> >>>> It's the chain. :-P >> >>> I suppose that is easy enough to fix then. So I shoul stop being >>> lazy and put in a chain guard. THEN if I still here it move on to >>> the next set of causes. >> >> Nah, a chain guard will likely be louder! :) >> >> Bounce the bike on your garage floor or driveway and listen for the >> clang. Look carefully and do it again. Chains move/bounce around >> for a reason, of course, but if it's way too slack you should take a >> link (or even two) out. You might need a shop to help with this if >> you don't have a chain tool; have them show you how to use one. >> >> If it's not the chain, then you want to rule out anything mechanical >> like a loose headset or bolt or front derailleur cage; like I said >> it could just be your saddle bag bouncing around if you have one. >> >> Let us know what you find! >> >> Bill S. > > I am ebarassed to report the actual cause. Last night I was doing the > monthly maintenance routine and suddenly I noticed that the end of my > hand pump was pretty loose. Loose enough to clang right against the > frame with a decent enough vibration. Duh! Today I fixed that issue > and the problem is gone. Funny how one can miss the obvious. AM/PM? Snooze? SEPARATE VOLUME CONTROLS! Nice <eg >
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Date: 30 Apr 2007 10:09:25
From: sschoe2
Subject: Re: Clang when hitting rough spots
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On Apr 29, 10:27 pm, Jorg Lueke <jlueke_2...@yahoo.com > wrote: > I definitely hear a loud clang when riding over rougher spots on > shoddy pavement. It sounds like it comes from right underneath me. > Would that be the stem bouncing a bit against the frame or some other > cause. It doesn't seem like it's coming chain. Do you have those rubber donuts on the rear brake cable where it runs along the top tube? That is also a common cause of clanking.
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Date: 30 Apr 2007 05:07:36
From: Jorg Lueke
Subject: Re: Clang when hitting rough spots
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On Apr 30, 8:34 am, "Bill Sornson" <a...@ask.me > wrote: > Jorg Lueke wrote: > > I definitely hear a loud clang when riding over rougher spots on > > shoddy pavement. It sounds like it comes from right underneath me. > > Would that be the stem bouncing a bit against the frame or some other > > cause. It doesn't seem like it's coming chain. > > It probably IS the chain, clanking off the chain stay. Other culprits > include your saddle bag, cleat/pedal noise (if unweighting), cyclometer > slightly loose in bracket, cables hitting the frame, etc. etc. etc. > > It's the chain. :-P I suppose that is easy enough to fix then. So I shoul stop being lazy and put in a chain guard. THEN if I still here it move on to the next set of causes.
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Date: 30 Apr 2007 10:32:40
From: Bill Sornson
Subject: Re: Clang when hitting rough spots
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Jorg Lueke wrote: > On Apr 30, 8:34 am, "Bill Sornson" <a...@ask.me> wrote: >> Jorg Lueke wrote: >>> I definitely hear a loud clang when riding over rougher spots on >>> shoddy pavement. It sounds like it comes from right underneath me. >>> Would that be the stem bouncing a bit against the frame or some >>> other cause. It doesn't seem like it's coming chain. >> >> It probably IS the chain, clanking off the chain stay. Other >> culprits include your saddle bag, cleat/pedal noise (if >> unweighting), cyclometer slightly loose in bracket, cables hitting >> the frame, etc. etc. etc. >> >> It's the chain. :-P > > > I suppose that is easy enough to fix then. So I shoul stop being lazy > and put in a chain guard. THEN if I still here it move on to the next > set of causes. Nah, a chain guard will likely be louder! :) Bounce the bike on your garage floor or driveway and listen for the clang. Look carefully and do it again. Chains move/bounce around for a reason, of course, but if it's way too slack you should take a link (or even two) out. You might need a shop to help with this if you don't have a chain tool; have them show you how to use one. If it's not the chain, then you want to rule out anything mechanical like a loose headset or bolt or front derailleur cage; like I said it could just be your saddle bag bouncing around if you have one. Let us know what you find! Bill S.
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Date: 30 Apr 2007 00:34:10
From: Bill Sornson
Subject: Re: Clang when hitting rough spots
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Jorg Lueke wrote: > I definitely hear a loud clang when riding over rougher spots on > shoddy pavement. It sounds like it comes from right underneath me. > Would that be the stem bouncing a bit against the frame or some other > cause. It doesn't seem like it's coming chain. It probably IS the chain, clanking off the chain stay. Other culprits include your saddle bag, cleat/pedal noise (if unweighting), cyclometer slightly loose in bracket, cables hitting the frame, etc. etc. etc. It's the chain. :-P
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