Hi! I am in the exact same boat as you are! I just got a new Madone 5.2 WSD with the compact set-up. I tried putting a 12-27 on it. It helped, but still wasn't enough to get me up one of my favorite climbs comfortably. (12% avg. grade, with a pitch of 20%) So, I decided to go with the IRD 11-34 cassette with a MTB XT rear derailleur. It works fine, but it does not have that wonderful, crisp shifting that I had with the 12-27. That is one thing I noticed right away, going from a triple to the compact double - how very much nicer the shifting was! But, the IRD cassette is acceptable. And the climbing gears it gives you are awesome! However, it is heavy at 363 grams. But, that is still lighter than a triple set-up would be.
Because of the weight and the less than perfect shifting, I decided to pull the trigger on a SRAM XX 11-32 cassette. It weighs 185 grams, which is less than the 12-27! And I'm hoping it shifts nicer.
But, bottom line, I guess it all depends on how picky you are. As I said before, the IRD 11-34 is quite acceptable. And it did give me the gearing I needed. If you're in the Sacramento CA. I will let you try it out!
Oh! And BTW, if you are interested in the SRAM XX cassette, this site has 15% off all their SRAM XX components, plus free shipping.
www.BicycleOutfittersIndy.com
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10-22-2009, 03:36 PM #19
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Last edited by VeloLisa; 10-22-2009 at 04:03 PM. Reason: Add URL for cassette discount.
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