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02-24-11, 08:13 AM
I recently purchased a partial Dura Ace 25th anniv. groupset (brakes, FD, RD and crankset)
mounting the crankset (FC-7700) however I notice a slight but noticeable wobble in the chain ring. The gap between the chain stay and the rings varies noticeably when you spin the RH crank.
I have tried this with two sets of rings, so I suspect the spiders are somehow, slightly misaligned.
my LBS guy confirmed this assessment and told me that he had had the same problem with a 25th anniversary crank, that it was a known (or at least common) problem, especially with heavier riders.
anyone else ever heard of this problem?
is there anything that can be done to realign things? or do I just toss it and replace it?
thanks
Peter
mounting the crankset (FC-7700) however I notice a slight but noticeable wobble in the chain ring. The gap between the chain stay and the rings varies noticeably when you spin the RH crank.
I have tried this with two sets of rings, so I suspect the spiders are somehow, slightly misaligned.
my LBS guy confirmed this assessment and told me that he had had the same problem with a 25th anniversary crank, that it was a known (or at least common) problem, especially with heavier riders.
anyone else ever heard of this problem?
is there anything that can be done to realign things? or do I just toss it and replace it?
thanks
Peter