11-27 cassette

forgotrafe
forgotrafe Posts: 637
edited March 2011 in Road buying advice
Last summer I fitted my bike (2010 Cannondale Synapse) with an 11-27 cassette rather than the 12-25 it came with.

Not only did this spread the gears out a bit more (nice), it helped enormously with the hills which I was finding a struggle with the compact chainset (previous bike was a triple). My rear mech is Ultegra 6700 (presumably short cage) and that's fine with the 2 extra teeth.

Chatting to someone at work and she's also gone from triple to compact and struggling a bit on the hills. She wanted to go back to a triple but I suggested swapping out her cassette would be much cheaper and problably solve the problem (she's way fitter than me).

But can't find an Ultegra 11-27 cassette or indeed any 11-27 cassette except a way-out-of-price-range Dura Ace one. Her bike has an Ultegra rear mech which I presume short cage (not had a chance to look at it or get the model number yet).

Questions:

I believe 11-28 isn't an option without a medium cage mech?
Does anyone make an 11-27 cassette?
Any other advice (other than get much fitter!)?

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