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Knocking sound?

Old 11-01-10, 12:12 PM
  #1  
Ekim4621
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Knocking sound?

Hello!
So when I start riding uphillish and stand up to crank... I noticed a knocking sound (sort of like the sound someone makes when they 'click' their mouth)? coming from the crank/BB area.

has anyone else had this experience? any suggestions as to whats wrong?
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Old 11-01-10, 12:41 PM
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gt35built
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loose bb cups
loose crank arms
loose chainring (doubtful)

take it to your lbs and have them fix it for you.
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Old 08-16-11, 06:58 AM
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Originally Posted by gt35built View Post
loose bb cups
loose crank arms
loose chainring (doubtful)

take it to your lbs and have them fix it for you.
Agreed. My crank arm comes loose often and makes a clicking sound when rotating. Lube up and tighten everything, you should be fine.
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Old 08-16-11, 07:06 AM
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Old 08-16-11, 08:01 AM
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I bet it was the chainring bolts.
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Old 08-16-11, 08:11 AM
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Or the flux capacitor. Low-grade plutonium is known to cause occasional knocks.
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Old 08-16-11, 10:50 AM
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Originally Posted by Scrodzilla View Post
Or the flux capacitor. Low-grade plutonium is known to cause occasional knocks.
Ya i use leaded plutonium to get rid of the knocking
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Old 08-16-11, 11:47 PM
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I had the exact same problem also. This probably won't help but last week, I jumped a curb because of a closed sidewalk and it went away.
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Old 08-17-11, 01:02 AM
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Curb hopping is always the best way to fix a flux capacitor.
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