Need to diagnose problem
#26
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One way to check that - jam little squares of card in the crossings.
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Sheldon Brown's bike info ~~~ Park Tools repair help
Half-step triple, using double gear ~~~ 6400 STI rebuild walkthrough ~~~ Want 8/9/10s @126mm OLD? OCR. ~~~ Shimano cassette body overhaul ~~~ Ergopower Escape wear repair ~~~ PSA: drivetrain wear
List of US/Canada bike co-ops ~~~ Global list
Sheldon Brown's bike info ~~~ Park Tools repair help
Half-step triple, using double gear ~~~ 6400 STI rebuild walkthrough ~~~ Want 8/9/10s @126mm OLD? OCR. ~~~ Shimano cassette body overhaul ~~~ Ergopower Escape wear repair ~~~ PSA: drivetrain wear
List of US/Canada bike co-ops ~~~ Global list
#27
Advocatus Diaboli
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Here’s an update. I followed most of your suggestions. Tightened the cleats, lubed and tightened the pedals, chainrings and other driveline components. Made sure the FD cable was out of the way. Checked the seatpost and more.
Problem is is still there. It doesn’t show until after about 10 miles but it’s still there. It’s more prominent under heavier load and relatedly up hills. The sound is between a creak and a click and is worse as the load increases like in the big ring, 13 tooth sprocket. Any more thoughts?
Problem is is still there. It doesn’t show until after about 10 miles but it’s still there. It’s more prominent under heavier load and relatedly up hills. The sound is between a creak and a click and is worse as the load increases like in the big ring, 13 tooth sprocket. Any more thoughts?
Does the click occur at the same point in the clock relative to the pedal positions, and if it is, does it change if you change gears ? Or is it completely random when the noise occurs?
To fully eliminate pedal/cleat possibility, you could swap in some platform pedals and see what happens.
#28
Senior Member
Thread Starter
Did you try 1-legged cycling?
Does the click occur at the same point in the clock relative to the pedal positions, and if it is, does it change if you change gears ? Or is it completely random when the noise occurs?
To fully eliminate pedal/cleat possibility, you could swap in some platform pedals and see what happens.
Does the click occur at the same point in the clock relative to the pedal positions, and if it is, does it change if you change gears ? Or is it completely random when the noise occurs?
To fully eliminate pedal/cleat possibility, you could swap in some platform pedals and see what happens.
I can’t imagine it’s the pedals or cleats. I used the same combination for 500 miles before this issue started.
#29
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Well, YMMV, but recently I was convinced that I had BB creaking and it turned out to be in the stem. Yeah, under heavy load you may be leaning on the bars more, and the front end becomes suspect.
When I took the bike into the LBS, the mechanic said, "everybody always thinks its the BB, but it could be anywhere."
And that's the point, it can *sound* like it's coming from the cranks or BB, but it could be anywhere.
Unless you are really good, I suggest a trip to the LBS.
When I took the bike into the LBS, the mechanic said, "everybody always thinks its the BB, but it could be anywhere."
And that's the point, it can *sound* like it's coming from the cranks or BB, but it could be anywhere.
Unless you are really good, I suggest a trip to the LBS.
#30
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I try all sorts of stuff to reproduce the sound off the bike, then you have a chance of narrowing it down.
__________________
Sheldon Brown's bike info ~~~ Park Tools repair help
Half-step triple, using double gear ~~~ 6400 STI rebuild walkthrough ~~~ Want 8/9/10s @126mm OLD? OCR. ~~~ Shimano cassette body overhaul ~~~ Ergopower Escape wear repair ~~~ PSA: drivetrain wear
List of US/Canada bike co-ops ~~~ Global list
Sheldon Brown's bike info ~~~ Park Tools repair help
Half-step triple, using double gear ~~~ 6400 STI rebuild walkthrough ~~~ Want 8/9/10s @126mm OLD? OCR. ~~~ Shimano cassette body overhaul ~~~ Ergopower Escape wear repair ~~~ PSA: drivetrain wear
List of US/Canada bike co-ops ~~~ Global list
#31
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#33
Senior Member
Thread Starter
You sir or madam are in my debt. If you are in SE Michigan I owe you a beer or 2. There are others with the same suggestion if I recall. Thanks to you all.
I feel foolish, dismissing these suggestions, but it finally clicked. Loose skewer, flexy rear triangle, especially under load. Duh! Just came back from a ride and the angels sang once again.
I feel foolish, dismissing these suggestions, but it finally clicked. Loose skewer, flexy rear triangle, especially under load. Duh! Just came back from a ride and the angels sang once again.
#34
Señor Blues
You sir or madam are in my debt. If you are in SE Michigan I owe you a beer or 2. There are others with the same suggestion if I recall. Thanks to you all.
I feel foolish, dismissing these suggestions, but it finally clicked. Loose skewer, flexy rear triangle, especially under load. Duh! Just came back from a ride and the angels sang once again.
I feel foolish, dismissing these suggestions, but it finally clicked. Loose skewer, flexy rear triangle, especially under load. Duh! Just came back from a ride and the angels sang once again.
Glad I could help, enjoy the quiet.
#35
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In the vintage steel frame days you would've torqued the wheel into the chainstay.
I may know that from experience..... Or not..
I may know that from experience..... Or not..