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  1. #1
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    Reputation: Scott In MD's Avatar
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    Sram XX Shifters 2X10 and 3X10 Compatable

    If I buy a 29er with OEM 39-26 crankset and Sram XX shifters... then decide I still need smaller granny gear to spin up my long climbs, can I switch to a 3X10 crankset with same shifters, or will I need to replace the shifters as well?

    If I don't like 39X26 I realize I could go 2X10 38-24 crank, but want to understand all options. I'm more familiar with Shimano shifters and understand I can use shimano shifters for 2X or 3X setup, and am assuming Sram is similar...

    Thanks.

  2. #2
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    Reputation: Scott In MD's Avatar
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    I think I answer my own question: Nope.

    SRAM XX Trigger Shifter 10sp Specification:
    Weight: 183g per pair
    Technology: Exact Actuation ratio for 10 speed

    Speeds: 2x10
    Compatibility: XX 2x10 only
    Hardware: AL-7075-T6 and stainless steel; TORX® T25 bolts
    Clamp: AL-6061-T6
    Body Material: Carbon fiber top cover; composite lower cover
    Blade Material: Carbon fiber pull; composite release
    Adjustability: Lever blade position

  3. #3
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    Your right, you can't do that.

    However there a few aftermarket companies making a 24 tooth for the 80mm, so you can always go that right.

    You might be surprised to find out you won't miss your 22 or 24. I thought I was going to miss it, but I never did. I have been to N.C. several times and never felt the need for a lower gear.

    Hope this helps.

  4. #4
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    Oops....26t is the smallest for 80mm. I was thinking 74mm.

  5. #5
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    Reputation: allenpg's Avatar
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    I was worried about having the extra climbing gear as well. Thus far, I haven't needed a smaller chainring on climbs I would normally need a 22 on (fingers crossed). These are average grades of ~10% for 1.5 miles.

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