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Shimano Deore XT M770 9 Speed Cassette

Item #: CS306B00
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USD$84.99 23% off USD$110.00 msrp
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Shimano Deore XT M770 Cassette features "Pro Level" technology at an accessible price.  The alloy carrier keeps the weight down and varying tooth profiles provide smooth shifting.  One unique feature on XT, pins behind the largest cog, help prevent the chain from damaging spokes.
  • Weight(claimed): 297 g
  • Compatible with 9 speed drivetrains
  • Fits all Shimano and Shimano compatible 8/9sp cassette bodies
  • Spider arm design
  • Aluminum lock ring
  • 34t version uses a 5 arm spider
  • 32t version uses a 4 arm spider

REVIEW SNAPSHOT®

by PowerReviews
Shimano Deore XT M770 9 Speed Cassette
 
4.2

(based on 20 reviews)

Ratings Distribution

  • 5 Stars

     

    (11)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

93%

of respondents would recommend this to a friend.

Pros

  • Precise shifting (10)
  • Easy to install (9)
  • Durable (8)
  • Lightweight (8)
  • Enhances pedaling efficiency (5)

Cons

    Best Uses

    • Mountain biking (11)
      • Reviewer Profile:
      • Avid cyclist (6), Casual/ recreational (4)
      • Was this a gift?:
      • No (11)

    Most Liked Positive Review

     

    Smooth operator

    I upgraded from HG series that came on my Specialized Stumjumper FSR Comp. That one lasted me a couple of YEARS! I ride at LEAST 3-4 times weekly, AND race Kenda Cup, ...Read complete review

    I upgraded from HG series that came on my Specialized Stumjumper FSR Comp. That one lasted me a couple of YEARS! I ride at LEAST 3-4 times weekly, AND race Kenda Cup, & other x/c races. I wanted to save weight, and retain the smooth shifting I have had since I bought the bike. I got 11-34t w/5 splines. No durabilty problems. I weigh 145lbs. I don't know why people say they bend these things. I think they probably recklessly shift under load like they're riding a motorcycle or something. I don't think you are supposed to do that on a bike. That's just my opinion.

    VS

    Most Liked Negative Review

     

    I've long preached...

    I've long preached running a full XT drivetrain, but I may have to go back to SRAM when buying a cassette. It seems that, to save weight, Shimano changed the spider to a ...Read complete review

    I've long preached running a full XT drivetrain, but I may have to go back to SRAM when buying a cassette. It seems that, to save weight, Shimano changed the spider to a four arm style vs. the old five arm. On my third ride with this cassette, the second cog folded over on itself under load. Being known as "The Bike Buster," I got a lot of heckling from my friends... but it turns out that this is a design flaw. If you're a strong rider who likes to put the hammer down on climbs, buy SRAM instead.

    Reviewed by 20 customers

    Sort by

    Displaying reviews 1-10

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    Previous | Next »

     
    5.0

    Xt m770!!

    By Vinny

    from Awhatukee, AZ

    About Me Avid Cyclist

    Verified Buyer

    Pros

    • Lightweight
    • Precise Shifting
    • The One Piece Spider

    Cons

      Best Uses

      • Mountain Biking

      Comments about Shimano Deore XT M770 9 Speed Cassette:

      It's a must it you have high end hubs, I was running a cheap cassette on my I9 hub, it was noching the aluminum free hub body. Now I have the XT m770 and the problem has been fixed.

      • Was this a gift?:
      • No
       
      4.0

      A good value for money cassette.

      By Rosco

      from N.Z.

      About Me Casual/ Recreational

      Pros

      • Durable
      • Easy To Install
      • Enhances Pedaling Efficiency
      • Precise Shifting

      Cons

        Best Uses

        • Mountain Biking

        Comments about Shimano Deore XT M770 9 Speed Cassette:

        Used on my XC bike mainly for recreational crosscountry riding.A good grade cassette at great price.

        • Was this a gift?:
        • No
         
        4.0

        good solid cassette

        By Slant6Nova

        from Québec, Ca

        Verified Reviewer

        Pros

        • Durable
        • Lightweight
        • Precise Shifting

        Cons

          Best Uses

          • Mountain Biking

          Comments about Shimano Deore XT M770 9 Speed Cassette:

          Realy good cassette, a little on the pricy side but light and durable enough to make you forget about it.

           
          4.0

          Very good cassette

          By Terry

          from Overland Park, KS

          About Me Avid Cyclist

          Verified Reviewer

          Pros

          • Durable
          • Easy To Install
          • Lightweight
          • Precise Shifting

          Cons

            Best Uses

            • Mountain Biking

            Comments about Shimano Deore XT M770 9 Speed Cassette:

            I have been running this cassette on Giant Trance X. Shifts great, no problems, light weight, durable.

            • Was this a gift?:
            • No
             
            5.0

            Shifts nice and simplifies long climbs!

            By Baritonejay

            from Regina, SK, Canada

            About Me Competitive Cyclist

            Verified Reviewer

            Pros

            • Durable
            • Easy To Install
            • Enhances Pedaling Efficiency
            • Lightweight
            • Precise Shifting

            Cons

              Best Uses

              • Mountain Biking

              Comments about Shimano Deore XT M770 9 Speed Cassette:

              I bought the 11-34T version and fell in love the first ride I used it! It improved my shifting and proved very durable. I just have a 3x9 setup and found that the 11-34T version made it possible to stay in the middle ring for most of my climbs and actually improved my race times! I loved it so much that when I traded my hardtail for a full-suspension bike I bought it again!

              • Was this a gift?:
              • No
               
              4.0

              Smooth operator

              By LOCORPH

              from RIVERSIDE, CA.

              About Me Casual/ Recreational

              Verified Reviewer

              Pros

              • Durable
              • Enhances Pedaling Efficiency
              • Lightweight
              • Precise Shifting
              • Shimano Quality

              Cons

                Best Uses

                • Mountain Biking
                • Xc Racing

                Comments about Shimano Deore XT M770 9 Speed Cassette:

                I upgraded from HG series that came on my Specialized Stumjumper FSR Comp. That one lasted me a couple of YEARS! I ride at LEAST 3-4 times weekly, AND race Kenda Cup, & other x/c races. I wanted to save weight, and retain the smooth shifting I have had since I bought the bike. I got 11-34t w/5 splines. No durabilty problems. I weigh 145lbs. I don't know why people say they bend these things. I think they probably recklessly shift under load like they're riding a motorcycle or something. I don't think you are supposed to do that on a bike. That's just my opinion.

                • Was this a gift?:
                • No
                 
                4.0

                perfect

                By Z

                from Boston, MA

                About Me Casual/ Recreational

                Verified Buyer

                Pros

                • Easy To Install

                Cons

                • None yet

                Best Uses

                • Mountain Biking
                • Simple To Install

                Comments about Shimano Deore XT M770 9 Speed Cassette:

                easy to install, should have done this 2 years ago instead of suffering though skipped gears and dropped chains!

                • Was this a gift?:
                • No
                 
                5.0

                XT Cassette

                By amsel

                from Van Nuys

                About Me Avid Cyclist

                Verified Buyer

                Pros

                • Easy To Install
                • Lightweight

                Cons

                  Best Uses

                    Comments about Shimano Deore XT M770 9 Speed Cassette:

                    works as intended.

                    • Was this a gift?:
                    • No
                     
                    5.0

                    light and strong

                    By cathy

                    from hercules, no ca

                    About Me Avid Cyclist

                    Verified Reviewer

                    Pros

                    • Durable
                    • Easy To Install
                    • Enhances Pedaling Efficiency
                    • Lightweight
                    • Precise Shifting

                    Cons

                      Best Uses

                      • Mountain Biking

                      Comments about Shimano Deore XT M770 9 Speed Cassette:

                      very light compared to my o.e shimano cassette. and ive got the 5 star aluminum spider! love it!

                      • Was this a gift?:
                      • No
                       
                      5.0

                      Good Cassette

                      By Mr. Pretty

                      from Texas

                      About Me Casual/ Recreational

                      Verified Reviewer

                      Pros

                      • Easy To Install
                      • Lightweight
                      • Precise Shifting

                      Cons

                        Best Uses

                        • Mountain Biking

                        Comments about Shimano Deore XT M770 9 Speed Cassette:

                        I upgraded to this after wearing out a Shimano HG50 (to be fair that one still lasted 3,000 miles). I purchased the 11t-34t design which comes with the 5 arm spider (instead of the 4 arm version). So far I only have about 200 miles on it but I am very pleased. It was quite a bit lighter than my old cassette, and it looks nicer too.

                        • Was this a gift?:
                        • No

                        Displaying reviews 1-10

                        Back to top

                        Previous | Next »

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                        Get free shipping with your $50 purchase today when you choose Standard Shipping at checkout. Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items