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  1. #1
    Senior Member BengeBoy's Avatar
    Join Date
    Jul 2007
    Seattle, Washington, USA
    My Bikes
    2014 Pivot Mach 5.7 MTB, 2009 Chris Boedeker custom, 1988 Tommasini Prestige, 2007 Bill Davidson custom; 1988 Specialized Stumpjumper
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    New-ish Shimano 12-36 cassette; could help you get lower gearing

    There's lots of posts on this forum from folks wanting to modify their bikes with lower gears for touring.

    I just noticed a couple of days ago the new Shimano SLX HG-61 9-speed cassette, with a 36-tooth large sprocket.

    From looking around a bit, I see that it was announced in the spring, but is just getting out to bike shops in the past few weeks. I know that it wasn't at Harris Cyclery about 6 weeks ago when I was looking at cassette options, now it is.

    Apparently this was intended for 29er MTB's, but with the right Shimano long-cage rear derailleurs could have touring applications as well. If you already have a triple with a small (22, 24 or 26 tooth) chainring, this may not matter, but it could be useful if:
    - You have a bike with a compact 50/34 double crankset. Putting a 12/36 cassette on the back gives you a low gear of around 25 gear inches.
    - You have a bike with a "road" triple crank with a 30-tooth inner chainring. Adding this cassette to the rear gives you a low gear around 22 gear inches.

    Harris states: "This cassette will index with any Shimano-type 9-speed shifter, but does require a Shimano rear derailer with Shadow technology."

    This article says, "The 12-36 cassettes are compatible with all Shadow rear derailleurs, which now includes XTR, Saint, XT, SLX and Deore."

  2. #2
    Senior Member
    Join Date
    Mar 2007
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    The stock 11-34 is still fine.

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