Bicycle Mechanics - Easton Circuit Wheel Click
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05-09-08, 12:29 PM
Commuted in to work and discovered a click on the way that has gotten progressively louder. I can't figure out what it is. If my hearing is accurate, it is coming from the front wheel. It isn't a brake rub, or my cyclometer hitting or any quick ties hitting or anything like that. If I just spin the wheel without load there is no noise and the wheel rotates just fine.
I went outside at lunch and determined that the click seems to be happening at the same place in the wheel revolution. There isn't any debri on the tire and the spokes don't seem noticably different in tension (using only my hands).
Anybody have even a vague suggestion of where to look next? I am stumped, and I have a 7 mile ride home.
05-09-08, 03:46 PM
Hmm, I saw this earlier and wanted to know the outcome. It's a real pain when something like that occurs. Sounds like it might be a spoke but if you've checked this out already then that tends to rule it out. Does it only happen when you pedal?
05-09-08, 04:02 PM
No, it happens if I am coasting. However, it seems to only happen if I am putting some weight on the bars. So if I dismount and walk alongside I hear nothing, but if I lean on the bars I can hear the click.
I decided that it was best not to risk damaging anything and my wife is picking me up. Oh well.
I am going to try a different front wheel and see if the sound disappears.
I really hate vague clicks, they are so hard to diagnose.
05-19-08, 04:10 AM
Shameless thread bump for own personal satisfaction. Any updates / new ideas?
05-29-08, 11:40 AM
Well, I have a preliminary finding which only proves that I am an idiot.
I swapped bearings as I couldn't find a spoke loose. That didn't help. I inspected and tinkered to no avail. Brakes not an issue.
Finally, last night, in readying to bring to the LBS for their inspection, I decided to swap tires and tubes. And viola!, the sound goes away.
What I am deducing is that the inner tube I was using I had patched. So, when the tube was fully inflated there is a gap between the tube and tire in the area of the patch.
Anyone ever hear of that making a clicking sound? I have patched many a tube and never encountered it.
I tested last night with a different tube tire combo and it appears the click is gone, but I only rode around the block a few times. Will test on a long ride this weekend.
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