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Old 03-09-07, 07:13 AM
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Originally Posted by Al1943
As the OP said, the middle ring in the 10-speed 105 triple is a 39. The big ring is a 50. For racing it may make sense to change the 12-27 cassette to something like a 12-23, or even an 11-21, depending on the race course. Not much reason for a first year racer to change a triple to a double. If anyone laughs at that triple drop 'em on the next climb.


Pardon me, I missed the 39t middle ring. That seems a bad move by Shimano. I love the 42t ring and find it one of the more versatile things in cycling. Besides, it is already a triple; why gear it down?
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