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  1. #1
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    XT Cassette 12/34 Spec

    Does anyone know the teeth count for the cogs on a 12/34 cassette?

    I am currently using a 11/34 cassette (11-13-15-17-20-23-26-30-34) but I hardly ever use the 11 so I'm thinking of replacing it with a 12/34 as it may give me smaller gaps between shifts.

    The 11/34 is a very popular combo, is there any disadvantage to the 12/34?

  2. #2
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    Quote Originally Posted by ahimanic
    Does anyone know the teeth count for the cogs on a 12/34 cassette?

    I am currently using a 11/34 cassette (11-13-15-17-20-23-26-30-34) but I hardly ever use the 11 so I'm thinking of replacing it with a 12/34 as it may give me smaller gaps between shifts.

    The 11/34 is a very popular combo, is there any disadvantage to the 12/34?
    Your answer is right here:

    http://sheldonbrown.com/k7.html

    Some people need to 11 tooth for speed, your decision.
    There is no added value to my participation - in fact, just more confusion.

  3. #3
    Elitest thrill junkie
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    Go 11-32. It will make (force) you faster.
    "It's only when you stand over it, you know, when you physically stand over the bike, that then you say 'hey, I don't have much stand over height', you know"-T. Ellsworth

    You're turning black metallic.

  4. #4
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    They only make XTR in 12-34. If you want closer spacing on XT go with the 11-32.

  5. #5
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    Quote Originally Posted by Hecubus
    They only make XTR in 12-34. If you want closer spacing on XT go with the 11-32.
    Nope, XT and XTR in either 11 or 12-34. 12,14,16,18,20,23,26,30,34

  6. #6
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    Quote Originally Posted by Fisty
    Nope, XT and XTR in either 11 or 12-34. 12,14,16,18,20,23,26,30,34
    I think Hecubus is right, Shimano dropped the 12-34 cassette on the XT's when they went to the 760 series. Shimano only lists the 11-32 (AQ-group) and 11-34 (AS-group) now for XT. Now only available in XTR.
    Last edited by GearHead; 02-21-2006 at 05:23 PM.
    There is no added value to my participation - in fact, just more confusion.

  7. #7
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    Yeah well Im not to concerned what the model number is. You can still get xt and xtr in both cogsets.

  8. #8
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    Quote Originally Posted by GearHead
    I think Hecubus is right, Shimano dropped the 12-34 cassette on the XT's when they went to the 760 series. Shimano only lists the 11-32 (AQ-group) and 11-34 (AS-group) now for XT. Now only available in XTR.
    XT 12x34 @ Cambria .com ...........79.95........

    ....................PEACE

  9. #9
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    Quote Originally Posted by Fisty
    Yeah well Im not to concerned what the model number is. You can still get xt and xtr in both cogsets.
    Only if you find the older 750 models which were relatively rare in 12-34 even when they were in production. Most stores never even bothered to stock anything other than the 11-34. The current 760 series no longer has it.

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