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Sram X.0 10 Speed Rear Derailleur

Item #: RD271A01
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The SRAM 10-speed rear derailleur features Exact Actuation Ratio and Direct Route Technology.  Its part of SRAMs new 2x10 line designed to give you the benefits of a 2x10 drivetrain.  Benefits of a 2x10 system include a better chainline, a narrower Q-factor (distance between pedal centers), and the simplicity of having a full range of useable gears while eliminating the redundant gear combinations.

Exact Actuation delivers an identical 3mm adjustment between each gear on the cassette.  That means the cable pulls the derailleur exactly 3mm each gear change (as opposed to a variation in pull effort) resulting in a crisper and more immediate shift. 
Direct Route Technology (Di.R.T.) reduces the friction by routing the cable directly to the actuation mechanism, giving you a more responsive shift as well as less cable housing damage.
  • Claimed Weight: 190g
  • 36T max
  • Material: Forged Aluminum, Carbon Fiber Composite, AL-7075-T6  / Stainless Steel
  • Compatible with SRAM 10-speed shifters

REVIEW SNAPSHOT®

by PowerReviews
Sram X.0 10 Speed Rear Derailleur '12
 
5.0

(based on 6 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Durable (4)
  • Lightweight (4)
  • Precise shifting (4)

Cons

    Best Uses

    • Mountain biking (5)
      • Was this a gift?:
      • No (5)

    Reviewed by 6 customers

    Sort by

    Displaying reviews 1-6

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    5.0

    Precise and smooth

    By smithcreek

    from Westerly, RI

    About Me Avid Cyclist

    Verified Buyer

    Pros

    • Durable
    • Lightweight
    • Precise Shifting

    Cons

      Best Uses

      • Mountain Biking

      Comments about Sram X.0 10 Speed Rear Derailleur '12:

      Pair it up with an X0 shifter and the only thing better is the tyep 2 X0 with a clutch.

      • Was this a gift?:
      • No
       
      5.0

      Sram XO Rear Der 10sp

      By Boxedrn

      from OC, Ca

      About Me Casual/ Recreational

      Verified Reviewer

      Pros

      • 1 Yr No Issues
      • Durable
      • Easy To Install
      • Lightweight
      • Precise Shifting

      Cons

      • None

      Best Uses

      • Mountain Biking

      Comments about Sram X.0 10 Speed Rear Derailleur '12:

      Been using this for a year with no issues, minimal adjustment after a year of use!! Best deraileur by far compared to my Xt.

      • Was this a gift?:
      • No
       
      5.0

      Watch your back Shimano...

      By Tom

      from Pittsburgh, PA

      About Me Competitive Cyclist

      Verified Reviewer

      Pros

      • Durable
      • Lightweight
      • Looks Mean
      • Precise Shifting

      Cons

      • Wheel Installation

      Best Uses

      • Mountain Biking

      Comments about Sram X.0 10 Speed Rear Derailleur '12:

      I have been a huge fan of Sram deraillluers as long as I can remember. When you shift one of these things you actually feel the shift as opposed to the limp noodle feeling with Shimano. The exact actuation is the ticket.

      Also, these derailleurs look killer on any bike. With the multiple color ways and the carbon fiber cages you can't go wrong.

      The only con I have which maybe is a testament to my mechanical ability...rear wheel installation is really difficult. I have an XO short cage on my DH bike and when it is in the stand I end up having a battle royal with the derailleur springs just to get the upper pulley to clear the cassette. It's tough but it's worth it because I would take this over a Shimano component any day...better performance, better customer service, and better looks...just down right better.

      • Was this a gift?:
      • No
       
      5.0

      Awesome!

      By Instante

      from Pennsylvania

      About Me Avid Cyclist

      Verified Reviewer

      Pros

      • Decent Weight
      • Reliable
      • Smooth

      Cons

      • None

      Best Uses

      • Mountain Biking

      Comments about Sram X.0 10 Speed Rear Derailleur '12:

      Rocking this on a Trek Superfly 100 for a full XO drive train. Nothing but good things to say about the shifting. Precise, reliable and smooth. Get this and never look back.

      • Was this a gift?:
      • No
       
      5.0

      Beautiful

      By ToucanLife

      from Caledon, Canada

      About Me Competitive Cyclist

      Pros

      • Durable
      • Easy To Install
      • Lightweight
      • Precise Shifting

      Cons

        Best Uses

        • Mountain Biking

        Comments about Sram X.0 10 Speed Rear Derailleur '12:

        Went with this for a full X0 driveline/shifters - relplaced a Shimano XT unit that I was never happy with.

        I can say that this shifts like an angle sliding down a rainbow - snappy bang bang style shifting - inspired lots of confidence on the trails when you are always sure your gears will be right there even under power.

        • Was this a gift?:
        • No
         
        5.0

        10 > 9

        By Shovelfoot

        from Middle America

        Verified Reviewer

        Pros

        • Goes to 10
        • Good tension

        Cons

        • Not your mom

        Best Uses

        • Change it up

        Comments about Sram X.0 10 Speed Rear Derailleur '12:

        Shifts great and the 10 speeds gives you more choices for how fast you want to spin those chicken legs of yours. This derailleur is going to convert all my bikes to Sram although I will never get used to the double tap on their road components (off topic)

        Displaying reviews 1-6

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