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Old 08-27-07, 07:35 PM   #1
Plainsman
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Switching Cassettes

I have a 12-25 10 speed Ultegra cass. on my road bike, and need another cassette to use for the trainer wheel I recently picked up. If I buy a 12-27, will I need to put on a longer chain, or is the 2 tooth difference so minor that it won't really matter?
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Old 08-27-07, 07:49 PM   #2
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Probably not, but it depends on how short your chain is now. It also depends on how many miles the 12-25 has on it. Old chains and new cassettes don't like each other most of the time.
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Old 08-27-07, 11:58 PM   #3
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Heck, get something really different. Like 11-23. You might like it, especially with a triple.
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Old 08-28-07, 05:35 AM   #4
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i went from a 14-28 to an 11-34 on my seven speed and no problems with the chain
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i jam my thumbs up and back into the tubes. this way i can point my fingers straight out in front to split the wind and attain an even more aero profile, and the usual fixed gear - zen - connectedness feeling through the drivetrain is multiplied ten fold because my thumbs become one with the tubing.
A group for all Dawes Galaxy owners to give and recieve information about them
http://flickr.com/groups/dawes_galaxy/
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