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Shimano M770 XT 9 Speed Cassette

USD$54.49 32% off USD$79.99 msrp
Item #: CS306B00
USD$54.49 32% off USD$79.99 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
 
4.4

(based on 58 reviews)

Ratings Distribution

  • 5 Stars

     

    (34)

  • 4 Stars

     

    (20)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

96%

of respondents would recommend this to a friend.

Pros

  • Precise shifting (42)
  • Easy to install (39)
  • Durable (33)
  • Lightweight (32)
  • Enhances pedaling efficiency (22)

Cons

No Cons

Best Uses

  • Mountain biking (45)
  • Road biking (4)
    • Reviewer Profile:
    • Avid cyclist (28), Casual/ recreational (14), Competitive cyclist (4)
    • Was this a gift?:
    • No (49)

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 58 customers

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Displaying reviews 1-10

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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
       
      4.0

      Solid, reliable

      By LCarroll

      from Leominster, MA

      About Me Avid Cyclist

      Verified Buyer

      Pros

      • Durable
      • Lightweight

      Cons

        Best Uses

        • Mountain Biking

        Comments about Shimano M770 XT 9 Speed Cassette:

        Easy to work with.

        • Was this a gift?:
        • No
         
        5.0

        Excellent 1x9 value

        By DJ

        from Boise, ID

        About Me Avid Cyclist

        Verified Buyer

        Pros

        • 1x9
        • Durable
        • Easy To Install
        • Enhances Pedaling Efficiency
        • Lightweight
        • Precise Shifting

        Cons

          Best Uses

          • 1x9
          • Mountain Biking
          • Trail
          • XC

          Comments about Shimano M770 XT 9 Speed Cassette:

          I did not install myself. Replaced a Deoré cassette. Took this into the LBS and they popped in on in just a couple minutes. Shifted perfectly and quietly without adjustment. A bit lighter. Like any part of your gear set, keep it clean and it will last you a lot of miles. Be sure your chain is within tolerance to avoid premature wear.

          • Was this a gift?:
          • No
           
          4.0

          9 speed Shimano M770 cassette

          By Del Marsian

          from San Diego

          About Me Casual/ Recreational

          Verified Buyer

          Pros

          • Durable
          • Easy To Install
          • Precise Shifting

          Cons

            Best Uses

            • Mountain Biking

            Comments about Shimano M770 XT 9 Speed Cassette:

            Great replacement cassette for 9 speed mountain bike.

            • Was this a gift?:
            • No

            (4 of 4 customers found this review helpful)

             
            5.0

            .

            By .

            from .

            About Me Avid Cyclist

            Verified Buyer

            Pros

            • Durable

            Cons

              Best Uses

              • Mountain Biking

              Comments about Shimano M770 XT 9 Speed Cassette:

              .

              • Was this a gift?:
              • No

              (4 of 4 customers found this review helpful)

               
              5.0

              Your bike isn't dead

              By Frankus

              from Gilbert/San Tan/Prescott, AZ

              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 M770 XT 9 Speed Cassette:

                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.

                • Was this a gift?:
                • No

                (4 of 4 customers found this review helpful)

                 
                4.0

                Top Quality

                By FranzSolo

                from Marietta, GA

                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:

                  Upgraded from a 32 tooth rear cassette to 34, I run a single 34 on front. Very nice gear spread and pretty smooth as well. Firm precise shifting.

                  • Was this a gift?:
                  • No

                  (4 of 4 customers found this review helpful)

                   
                  4.0

                  Old Reliable

                  By Ricky Racer

                  from Collegeville, PA

                  About Me Avid Cyclist

                  Verified Buyer

                  Pros

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

                  Cons

                  • None

                  Best Uses

                  • Commuting
                  • Mountain Biking
                  • Road Biking

                  Comments about Shimano M770 XT 9 Speed Cassette:

                  I have been using Shimano XTR and XT cassettes for many years and in my opinion you can't beat XT's performance for the dollar. I think the XT line up is the best value in mountain cassettes if you ride Shimano drive trains.

                  • Was this a gift?:
                  • No
                   
                  5.0

                  Great value and performance

                  By Rune

                  from Berkeley, CA

                  About Me Casual/ Recreational

                  Verified Reviewer

                  Pros

                  • Easy To Install
                  • Lightweight
                  • Precise Shifting

                  Cons

                    Best Uses

                    • Mountain Biking

                    Comments about Shimano M770 XT 9 Speed Cassette:

                    Got this cassette to aid in my upgrade from an old 7-speed system (Deore DX) to 9-speed. I'm using this cassette with XT 770 shifters and the setup is incredibly smooth. Seems to work great with the SRAM PC-971 chain. Haven't used it long enough to comment on durability yet.

                    • Was this a gift?:
                    • No

                    Displaying reviews 1-10

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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

                     

                    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.