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Old 03-08-07, 07:59 PM
  #18  
Al1943
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Bikes: Trek 5500, Colnago C-50

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Originally Posted by barba
You can if you set the limit screws correctly, but I see little point. The weight savings are small and a standard double crank's small ring is 39t. Your's would be a 42.
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.

Al
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