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e.13 Extended Range Cog

USD$69.95
Item #: CS224Z00
USD$69.95
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E.13 Extended Range Cog

The Extended Range Cog brings lower gears to your 1x10 drivetrain. Currently, 10-speed cassettes only go up to 36T, which is plenty for 2x or 3x setups. However, with the increasing popularity of the 1x drivetrain the need for lower gears is what’s keeping most riders from converting over to the dark side. The Extended Range Cog replaces another cog on your cassette to provide a lower 40/42T cog to help on those steep climbs. Recommended for use with a medium to long cage derailleur, the Extended Range Cog also includes an replacement B limit screw which is much longer than the standard B limit screw, to allow your derailleur to handle a large 40/42T cog.

The 40T option is only meant to be used with Shimano 34T cassettes. This is due to the fact that SRAM does not make a 34T and the shifting will be compromised with a 36T as the timing will not be correct. A medium or longer cage derailleur is recommended, however you still may need to use the included extended B limit screw.

E.13 Extended Range Cog Features:

  • Cog Material: EXA+ Aluminum
  • Thickness: 5mm
  • Compatibility: 10 speed
  • Ring Sizes: 40t, 42t Shimano – 42t SRAM
  • Weight: 70g (40t), 77g (42t)
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REVIEW SNAPSHOT®

by PowerReviews
e.thirteene.13 Extended Range Cog
 
3.3

(based on 18 reviews)

Ratings Distribution

  • 5 Stars

     

    (7)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (5)

61%

of respondents would recommend this to a friend.

Pros

  • Easy to install (12)
  • Attractive (10)
  • Lightweight (7)
  • Durable (4)

Cons

  • Limited compatibility (3)

Best Uses

  • Mountain biking (15)
    • Reviewer Profile:
    • Avid cyclist (13), Casual/ recreational (3)
    • Was this a gift?:
    • No (18)

Most Liked Positive Review

 

Works great

I purchased this product despite the mixed reviews and am very pleased. I took my time with the set-up. I climb a lot of hills and rocky terrain in San Diego, and, with...Read complete review

I purchased this product despite the mixed reviews and am very pleased. I took my time with the set-up. I climb a lot of hills and rocky terrain in San Diego, and, with some derailleur and shifter tuning, was able to get flawless performance. I had one instance when the chain slipped out of gear, but I had my tools with me and discovered that I simply needed to take up some cable slack at the shifter. My SRAM derailleur didn't require a longer b-limit screw. I am very happy with this product.

VS

Most Liked Negative Review

 

Chain won't stay when loading.

In the first month of use, it was ok but then the trail I was riding was not as steep . then I started using it on more steeper angle and technical climbing and...Read complete review

In the first month of use, it was ok but then the trail I was riding was not as steep . then I started using it on more steeper angle and technical climbing and putting more load to it. the chain will click and pop it wanted to get off the cog. no matter how much adjustments I do. one time I was loading/climbing and stood up then the chain throw off the cassette as I pedal, hit my balls on the stem. it was not fun. then I saw the flaw the E-13 42t bends on load hence the chain to come off. I wish I can return it.

Reviewed by 18 customers

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Displaying reviews 1-10

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5.0

Nice product!

By Yeti in SLO

from San Luis Obispo CA

About Me Avid Cyclist

Verified Buyer

Pros

  • Attractive Design
  • Easy To Install
  • Lightweight

Cons

    Best Uses

    • Mountain Biking

    Comments about e.thirteen e.13 Extended Range Cog:

    I bought the eThirteen while searching for a large cog for the rear on my 1 x 10 setup. I found that most offerings required an 11-36 cog set from Shimano. This eTHirteen cog is intended for 11-34, and allowed me to have a large cog without having to buy a whole set. Great product.

    • Was this a gift?:
    • No
     
    5.0

    Works great

    By Normmmm

    from San Diego, CA

    About Me Avid Cyclist

    Verified Reviewer

    Pros

    • Attractive Design
    • Durable
    • Easy To Install
    • Good Instructions

    Cons

      Best Uses

      • Mountain Biking

      Comments about e.thirteen e.13 Extended Range Cog:

      I purchased this product despite the mixed reviews and am very pleased. I took my time with the set-up. I climb a lot of hills and rocky terrain in San Diego, and, with some derailleur and shifter tuning, was able to get flawless performance. I had one instance when the chain slipped out of gear, but I had my tools with me and discovered that I simply needed to take up some cable slack at the shifter. My SRAM derailleur didn't require a longer b-limit screw. I am very happy with this product.

      • Was this a gift?:
      • No
       
      5.0

      really good!

      By nico_end

      from chile

      About Me Avid Cyclist

      Pros

      • Easy To Install

      Cons

        Best Uses

        • Mountain Biking

        Comments about e.thirteen e.13 Extended Range Cog:

        really good

        • Was this a gift?:
        • No
         
        5.0

        GREAT CHAINRING!

        By Gnezis

        from Nogales Arizona

        About Me Casual/ Recreational

        Verified Buyer

        Pros

        • Attractive Design
        • Durable
        • Easy To Install
        • Lightweight

        Cons

        • Nothing Bad

        Best Uses

        • Mountain Biking

        Comments about e.thirteen e.13 Extended Range Cog:

        A great product! great quality, great looking

        • Was this a gift?:
        • No
         
        2.0

        Chain won't stay when loading.

        By Kabaw

        from Murrieta

        About Me Avid Cyclist

        Pros

        • Attractive Design

        Cons

          Best Uses

          • Mountain Biking

          Comments about e.thirteen e.13 Extended Range Cog:

          In the first month of use, it was ok but then the trail I was riding was not as steep . then I started using it on more steeper angle and technical climbing and putting more load to it. the chain will click and pop it wanted to get off the cog. no matter how much adjustments I do. one time I was loading/climbing and stood up then the chain throw off the cassette as I pedal, hit my balls on the stem. it was not fun. then I saw the flaw the E-13 42t bends on load hence the chain to come off. I wish I can return it.

          • Was this a gift?:
          • No
           
          5.0

          It Works!

          By Mikes

          from Las Vegas

          About Me Avid Cyclist

          Pros

          • Easy To Install

          Cons

            Best Uses

            • Mountain Biking

            Comments about e.thirteen e.13 Extended Range Cog:

            I installed this on a Stan's Flow 29 with Hope hubs and Shimano XT 11-36 cassette. I replaced the 36 cog as recommended and also took off the 15 & 17 as I used an extra 16 cog from my road cassette. I am happy with the install but it is not as smooth as the original 11-36 config.

            I have a 34t narrow wide chain ring to complete the 1x10 setup.

            Don't forget to measure and adjust your chain length.

            • Was this a gift?:
            • No
             
            1.0

            Throws chain - Avoid.

            By Kris

            from Vermont

            About Me Avid Cyclist

            Pros

            • Shifting Is Not A Problem

            Cons

            • Tries To Eject Chain

            Best Uses

              Comments about e.thirteen e.13 Extended Range Cog:

              Installation is easy. Indexing is easy. Shifting is smooth and silky.

              On the trail, as soon as you put any kind of load on it (climbing a hill, for example) it clicks and pops and clangs as it tries to throw the chain off of itself. we suspect, based on other reviews we've seen, that the shifting ramps are to blame. Waste of money. This is not a setup issue, the chain is brand new, the cassette is brand new.. This cog just is poorly designed.

              • Was this a gift?:
              • No

              (1 of 1 customers found this review helpful)

               
              1.0

              good only at the stand

              By Cleber

              from Brazil

              About Me Casual/ Recreational

              Verified Reviewer

              Pros

              • Easy To Install
              • Lightweight

              Cons

              • It Doesn't Work

              Best Uses

              • Mountain Biking

              Comments about e.thirteen e.13 Extended Range Cog:

              Perhaps it's is very easy to install and the gears shift perfectly on the stand, one little load on the pedals make the chain stuck on the tooth. It's like having chain such on the cassette. Me and my Dremel are spending some time to make the 40T sprocket usable.

              • Was this a gift?:
              • No

              (1 of 1 customers found this review helpful)

               
              5.0

              Flawless. Best full range cog on market

              By Sexy Saxman

              from Petaluma, CA

              About Me Competitive Cyclist

              Verified Buyer

              Pros

              • Attractive Design
              • Durable
              • Easy To Install
              • Lightweight

              Cons

                Best Uses

                • Enduro
                • Mountain Biking

                Comments about e.thirteen e.13 Extended Range Cog:

                This is flawless! I started to get a skipping noise like some of the other comments here, but to fix that you just put your B Set Screw out a little more and it'll go away. BEST INVESTMENT EVER

                • Was this a gift?:
                • No

                (0 of 1 customers found this review helpful)

                 
                4.0

                Yes to this

                By BBBB

                from Pgh Pa.

                About Me Avid Cyclist

                Verified Buyer

                Pros

                • Attractive Design
                • Durable
                • Easy To Install
                • Lightweight

                Cons

                  Best Uses

                  • Mountain Biking
                  • Upgrade

                  Comments about e.thirteen e.13 Extended Range Cog:

                  save a # 4 $100.00

                  • 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.