Cassettes and Cranks

Discussion in 'Cycling Equipment' started by AggieCycler92, Sep 14, 2005.

  1. AggieCycler92

    AggieCycler92 New Member

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    I recently moved from Texas to Maryland and the hills are considerably larger here :eek: . I decided that I wanted to get some lower gearing on my road bike and was wondering if anyone can offer me some advice on Crank/Cassette combos.

    I've got a LeMond Tourmalet (stock) with a 105 front (Double Chain Ring 53-39) and an Ultegra RD-6500-SS Rear Derailleur (12-25 cassette). I looked into converting to a triple and decided that it was too involved. I settled for going to a compact Crank and got a Ritchey that gives me a 50-34 set up.

    I was now wondering if I could replace my rear cassette with a 11-32. I think I might have some problems with that since the specs for the rear I have says it will only take a max 27 tooth cassette.

    My question is: Has anyone had any experience with using such a combination (a 50-34 front chain ring with an 11-32 rear cassette) or know of difficulties with such and will my current rear derailleur even WORK with an 11-32...specs say no, it seems. Any help will be greatly appreciated.
     
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  2. RapDaddyo

    RapDaddyo Active Member

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    I've just made a similar change to my road bike for a hillclimb TT. Specifically, I went from a 13-26 cassette to a 13-29 and from a 39/52 crank to a 34/50 compact crank. I'm running Campy, so my experience may not apply directly to your components. The spec sheet said that I would need the Campy medium cage rear derailleur for the 13-29 cassette, so I ordered it but my LBS mechanic didn't think I would need it and he was right -- my standard cage rear derailleur works fine with the 13-29 cassette. I'll be returning the medium cage derailleur. You might want to have a medium or long cage rear derailleur on hand (be sure you can return it if you don't need it) but otherwise I think everything should work. Your chain might not handle the full crossover (big to big) but you don't want to ride that gear anyway.
     
  3. bbattle

    bbattle New Member

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    I'm using an FSA 50-34 compact with an Ultegra 12-25 and I'm able to do some decent climbs. (I've only been road biking for two months and I'm 39). I would give your current setup at least a few months to attack those hills.

    When the cassette needs replacing I might get the 12-27 cassette. If there's an alternative, I would sacrifice in favor of lower gearing; I can get a useful cadence from the 50-12 gearing only when flying downhill.
     
  4. AggieCycler92

    AggieCycler92 New Member

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    That's a good point, I should give it some time, I guess. And those were my same thoughts on the gearing. The 11-32 was the one I happened to see that gave me the lowest gearing.

    Technically it was a 105 cassette...should that matter?
     
  5. AggieCycler92

    AggieCycler92 New Member

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    Right...I might go ahead and order both then when it comes to it and just return the D if I don't need it. Thanks for the advice!
     
  6. cydewaze

    cydewaze New Member

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    Hi Aggie. What area of MD? I'm in MD as well.
     
  7. AggieCycler92

    AggieCycler92 New Member

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    Westminster...been looking for some riding pards, too.
     
  8. cydewaze

    cydewaze New Member

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    Hey, not far off. I'm in Damascus, a straight shot down route 27. Around 20-25 miles. I used to know a few good rides around your area, but I've forgotten them all now. One good one went west to Thurmont and up Catoctin Mtn and back (lots of climbing).

    I have several good routes in my area, ranging from 40-60 miles. Drop me a line if you want to meet up for a ride sometime. Once the fiance gets back from her trip, she'll be itching to get back on her bike.
     
  9. dbrower

    dbrower New Member

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    You can reasonably run a 12-27 with what you have; that is what I do. As old and decrept as I'm becoming, I'm thinking about a mountain cassette (32 or 34) and that will require a long cage DR.

    -dB
     
  10. boudreaux

    boudreaux New Member

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    Actually, it isn't about cage length which is really about wrap capacity,not the ability to shift a big cog. Get an mtb RD that will handle a 32 or 34, not a road long cage.
     
  11. cydewaze

    cydewaze New Member

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    That makes perfect sense.

    I've run a 34t cassette before with an XT short cage derailleur. I think you only need a long cage if you run a triple up front (to take up the extra chain slack when you're on the granny ring).
     
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