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Shimano M770 XT 9 Speed Cassette

USD$43.99 23% off USD$56.99 msrp
Item #: CS306B00
USD$43.99 23% off USD$56.99 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
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REVIEW SNAPSHOT®

by PowerReviews
Shimano M770 XT 9 Speed Cassette
 
4.5

(based on 66 reviews)

Ratings Distribution

  • 5 Stars

     

    (40)

  • 4 Stars

     

    (22)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

97%

of respondents would recommend this to a friend.

Pros

  • Precise shifting (48)
  • Easy to install (45)
  • Durable (39)
  • Lightweight (36)
  • Enhances pedaling efficiency (25)

Cons

No Cons

Best Uses

  • Mountain biking (52)
  • Road biking (4)
    • Reviewer Profile:
    • Avid cyclist (34), Casual/ recreational (15), Competitive cyclist (5)
    • Was this a gift?:
    • No (57)

Most Liked Positive Review

 

Your bike isn't dead

Just like any vital part of a transmission on a car, cassettes wear out. Luckily it won't cost you thousands to replace on your bike. Nothing breathes new life in to your bike...Read complete review

Just like any vital part of a transmission on a car, cassettes wear out. Luckily it won't cost you thousands to replace on your bike. Nothing breathes new life in to your bike like a new cassette (at least after 3 years and thousands of miles). I'm loyal to Shimano after a horrible experience with SRAM, everyone has their own opinion, but you just can't beat Shimano. It's the reliability, quality, value, and performance you'd expect from Deore XT. Don't buy a new bike, just fix your transmission. Bike feels like it shifted off the showroom floor 3 years ago, keeping in mind I replaced the chain along with it.

VS

Most Liked Negative Review

 

Great cassette but needed work ? ?

Had Jenson install when purchased and immediately noticed a faint spoke sound. After a few rides i had thought i had a few loose spokes but every time i checked them i found nothing....Read complete review

Had Jenson install when purchased and immediately noticed a faint spoke sound. After a few rides i had thought i had a few loose spokes but every time i checked them i found nothing. As the sound grew louder i had finally found the problem, shimano had designed the big sprocket with pins integrated as to protect from "chain damage to spokes" but these little pins had hit all spokes slightly damaging them. The sprocket had to have the pins lightly ground down with a dremell to clearance the spokes. I would have given it 5 stars but due to the fact that i was replacing the same exact cassette with a new one and the old one did not have the pins and now i had to modify a new cassette, i knocked it to 3 stars. Had jenson caught this on install i would had just bought something else and saved myself some time and spoke damage. If u are thinking the freewheel hub had play it was replaced weeks earlier so that is not the culprit. BTW who has had a chain jump over the large sprocket on the cassette ? Every time my chain derails i am flying and my chain falls to the smallest cog!

Reviewed by 66 customers

Displaying reviews 1-10

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4.0

Quality and Price

By Mark

from South Lake Tahoe

About Me Avid Cyclist

Verified Buyer

Pros

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

Cons

    Best Uses

    • Mountain Biking

    Comments about Shimano M770 XT 9 Speed Cassette:

    Not the lightest yet not the heaviest either. Shifts as good as any better than most.

    • Was this a gift?:
    • No
     
    5.0

    Shimano consistency

    By Mbikeman

    from Boise, ID

    About Me Avid Cyclist

    Verified Buyer

    Pros

    • Durable
    • Easy To Install
    • Precise Shifting

    Cons

      Best Uses

      • Mountain Biking

      Comments about Shimano M770 XT 9 Speed Cassette:

      Shimano always delivers. Hard to beat them for consistent performance. Not always the lightest, but it works.

      • Was this a gift?:
      • No
       
      5.0

      Great bang for the buck!

      By CO2Max

      from Stoney Creek, ON

      About Me Casual/ Recreational

      Verified Buyer

      Pros

      • Durable
      • Easy To Install
      • Enhances Pedaling Efficiency
      • Lasts For Years
      • Lightweight
      • Looks Great
      • Precise Shifting

      Cons

        Best Uses

        • Mountain Biking

        Comments about Shimano M770 XT 9 Speed Cassette:

        Very reliable long lasting cassette. The XT drivetrain shifts very precisely.

        • Was this a gift?:
        • No
         
        5.0

        Good

        By Rufface

        from San Fransisco, CA

        About Me Avid Cyclist

        Verified Buyer

        Comments about Shimano M770 XT 9 Speed Cassette:

        Works. Easy to clean.

        • Was this a gift?:
        • No
         
        5.0

        Great Cassette at Great Price

        By David Racer

        from San Antonio, TX

        About Me Competitive Cyclist

        Verified Buyer

        Pros

        • Durable
        • Easy To Install
        • Lightweight
        • Precise Shifting

        Cons

          Best Uses

          • Mountain Biking

          Comments about Shimano M770 XT 9 Speed Cassette:

          I've been running a 1X9 setup for a few years now. I don't like to spin up steep hills so 9 gears is enough for me. In my opinion, 10 or even 11 gears is to much weight and the cost is too high. I ride a lot so need a new cassette every year, even after replacing my chain before it stretches, so this cassette is a great price and is light weight.

          • Was this a gift?:
          • No
           
          4.0

          Good Buy

          By Pepe

          from West Hartford, CT

          About Me Avid Cyclist

          Verified Buyer

          Pros

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

          Cons

            Best Uses

            • Mountain Biking

            Comments about Shimano M770 XT 9 Speed Cassette:

            Product as described. Fast Shipping.

            • Was this a gift?:
            • No
             
            5.0

            Great Cassette for the price. Shifts like a pro

            By Osky

            from Bethesda, MD

            About Me Avid Cyclist

            Verified Buyer

            Pros

            • Durable
            • Precise Shifting

            Cons

              Best Uses

              • Mountain Biking

              Comments about Shimano M770 XT 9 Speed Cassette:

              This cassette shifts great and is light. Great product/money ratio

              • Was this a gift?:
              • No
               
              5.0

              Well Designed

              By m

              from NE Indiana

              About Me Avid Cyclist

              Verified Buyer

              Pros

              • Easy To Install
              • Lightweight
              • Precise Shifting

              Cons

                Best Uses

                • Mountain Biking

                Comments about Shimano M770 XT 9 Speed Cassette:

                After running HG 30 and HG 50 Deere/Alivio cassettes previously, I can really appreciate the high end lightweight design features of the XT M770. Only got 7 winter trail miles on it so far (1lap) so durability isn't known yet.

                • Was this a gift?:
                • No
                 
                5.0

                Snappy shifting

                By Shifty

                from Anchorage, AK

                About Me Casual/ Recreational

                Verified Buyer

                Pros

                • Easy To Install
                • Precise Shifting

                Cons

                  Best Uses

                  • Mountain Biking

                  Comments about Shimano M770 XT 9 Speed Cassette:

                  Installed this on an MTB rebuild project. Coupled with new chain rings and a new 9-spd shimano chain, I've achieved flawless shifting. All I have to do is pick a gear and go. The chain slips right onto the selected gear whether I'm moving one, two, or three gears at a shot. This is perfection defined!

                  • Was this a gift?:
                  • No
                   
                  4.0

                  Great improvement over stock cassette.

                  By D

                  from Dubuque, Iowa

                  About Me Avid Cyclist

                  Verified Buyer

                  Pros

                  • Easy To Install
                  • Lightweight
                  • Precise Shifting

                  Cons

                    Best Uses

                    • Mountain Biking

                    Comments about Shimano M770 XT 9 Speed Cassette:

                    Shifts fast and is 200 grams lighter than the cassette that came with my bike.

                    • Was this a gift?:
                    • No

                    Displaying reviews 1-10

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                    Free Shipping Offer

                    Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during 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.