DA 11-27 w/Ultegra RD
05-19-15, 12:49 PM
#1
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DA 11-27 w/Ultegra RD
My current setup is Ultegra Components (2013) . 50-34 Crankset with a 11-25 10sp. cassette. I would like to install a Dura Ace 11-27 cassette. Would it be compatible with the Ultegra Rear Derailleur and would it require and other modifications with respect to the chain?
05-19-15, 01:30 PM
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No problem for the derailleur, but unless your chain is almost new you should install a new chain as well. Depending on how your current chain is sized you may have to add a link to accommodate the larger big cog of the 11-27 cassette
05-20-15, 12:17 PM
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Your Ultegra RD should be able to handle that slightly larger cog.
I concur that a new chain is recommended when fitting a new cassette. You'll get better shifting than with a stretched/worn chain.
05-20-15, 12:35 PM
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Better shifting and a worn chain will accelerate wear on a new cassette. Dura Ace cassettes are expensive enough that you don't want to wear them out faster than necessary
