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Subtle clunk when applying pressure to cranks.

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Subtle clunk when applying pressure to cranks.

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Old 09-10-06, 10:00 AM
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Subtle clunk when applying pressure to cranks.

When accelerating the bike from a stop, there's a VERY slight clunk or feel of a bit of looseness coming from the crank. I've tried tightening the crank bolts and it's still there. Ideas?

Superbe Pro BB. SG75 Crank. Zen ring.
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Old 09-10-06, 10:40 AM
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Cahinring? Cog? Rear wheel (spokes, axle nuts, bearing play)?
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Old 09-10-06, 10:42 AM
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Check to see if any roundness to the spindle or inside the ranks.

do you have washers in the crankarm where the bolts go?

S/F,
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Old 09-10-06, 11:23 AM
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Check your chainring bolts. A time or two I've had bolts loosen enough that the chainring will shift just a little in a rotary fashion.
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Old 09-10-06, 02:51 PM
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How is your chain tension? If it's too loose you might be feeling a little bit of play from that.
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Old 09-10-06, 03:06 PM
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Originally Posted by GirlAnachronism
How is your chain tension? If it's too loose you might be feeling a little bit of play from that.

+1
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Old 09-10-06, 03:24 PM
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Also might check on pedal bearings.
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Old 09-10-06, 03:40 PM
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id say its the chainring bolts.... or the chain tension.
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Old 09-10-06, 03:41 PM
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Could also be that your chain tension has a tight spot.
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Old 09-10-06, 08:02 PM
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also make sure its not your cog....
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Old 09-10-06, 08:58 PM
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Check to make sure you're not riding my bike first.
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Old 09-10-06, 09:18 PM
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Originally Posted by SingleSpeeDemon
Check to make sure you're not riding my bike first.
+1. All of my old square taper cranks make that clunk.
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