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Having Creaking Sounds from the Crankset. I have changed BB, Chain, Cassette and it is still noisy. Is it possibly a crack in the frame somewhere near the BB? Sound is prominent especially when standing.

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Hello,

I can tell that the problem might be the bearing. Try replacing the the bearing.

Cheers!

Posted on Jun 22, 2009

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The deralleur is cake but the crank may present problems not so much mechanically as in the 'q' factor or distance from the frame center to where the chainrings and pedals will rest. Sometimes when you change cranks you get a different effective depth of penetration by the bottom bracket so your chain lne may be difficult to adjust for good shifting.

I don't know an easy way to deteremine the end result prior to just trying it. A Bike Shop migh thave some data and recommendations for BB length.

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http://www.parktool.com/blog/repair-help

http://www.parktool.com/blog/repair-help/chain-line

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If you are going to use the front triple crankset, then you need to use the 6603 components. These are for Triple set-ups.

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If you want to change the crankset to a compact, then you can use the 6600 (double) equipment, but you will need to change the left (front shifter) to a double as well. The compact crankset, will give you virtually the same range as the triple and be much lighter and shift better.

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