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e.13 Extended Range Cog

Item #: CS224Z00
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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
 
2.9

(based on 13 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (5)

54%

of respondents would recommend this to a friend.

Pros

  • Easy to install (8)
  • Attractive (6)
  • Lightweight (5)

Cons

  • Limited compatibility (3)

Best Uses

  • Mountain biking (10)
    • Reviewer Profile:
    • Avid cyclist (9)
    • Was this a gift?:
    • No (13)

Most Liked Positive Review

 

It Works!

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...Read complete review

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.

VS

Most Liked Negative Review

 

Doesn't work. Get a Wolftooth.

I have a Wolftooth and an E13 42th exetended cog. The Wolftooth works on both of my bikes. The E13 works on neither. One bike has American Classic hubs the other Sun Ringle,...Read complete review

I have a Wolftooth and an E13 42th exetended cog. The Wolftooth works on both of my bikes. The E13 works on neither. One bike has American Classic hubs the other Sun Ringle, so the problem is not limited to a certain manufacture. The Wolftooth has lip the protrudes on the back side. This prevents the cog from rubbing against the hub. The E13 is actually depressed. Consequently, it rubs against the hub. I tried different sized spacers, but could never get the E13 to work properly. The Wolftooth worked right out of the box

Reviewed by 13 customers

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Displaying reviews 1-10

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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
       
      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
         
        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
           
          4.0

          ex-cog

          By Bicycle Bruce

          from El Paso, Texas

          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:

            Good choice for anyone wanting to switch to 1x10 and not spend a grand.

            • Was this a gift?:
            • No
             
            1.0

            Doesn't work. Get a Wolftooth.

            By SingleTrackMind

            from Bellingham

            About Me Competitive Cyclist

            Verified Buyer

            Pros

              Cons

              • Limited Compatibility

              Best Uses

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

                I have a Wolftooth and an E13 42th exetended cog. The Wolftooth works on both of my bikes. The E13 works on neither. One bike has American Classic hubs the other Sun Ringle, so the problem is not limited to a certain manufacture. The Wolftooth has lip the protrudes on the back side. This prevents the cog from rubbing against the hub. The E13 is actually depressed. Consequently, it rubs against the hub. I tried different sized spacers, but could never get the E13 to work properly. The Wolftooth worked right out of the box

                • Was this a gift?:
                • No
                 
                4.0

                Works as advertised

                By ctmtb

                from Connecticut

                About Me Avid Cyclist

                Verified Reviewer

                Pros

                • Easy To Install

                Cons

                  Best Uses

                  • Mountain Biking
                  • Racing

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

                  I was able to get this working perfect in about 30 minutes. Once I got the med cage derailuer tuned, it now shifts smoothly in all gears 11-42.

                  I did not need the long limit screw for my setup. I was happy with the way this performed and bought one for my other bike too. Both are now 1 x 10 with a 11/42 cog.

                  • Was this a gift?:
                  • No

                  (1 of 1 customers found this review helpful)

                   
                  1.0

                  NO-GO on my Norco Range

                  By Nomad.66-Mark

                  from St. John's, Newfoundland

                  About Me Avid Cyclist

                  Verified Reviewer

                  Pros

                    Cons

                      Best Uses

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

                        Easy to install on my Mavic Crossmax Enduros. Seemed to tune fairly well on the stand, but on the trail when on the pedals, the chain jumps and skips. This cog would not keep the chain, no matter how the derailleur was tuned. I tweaked away for hours and even tried a different bb spacer arrangement to keep the chain more in line on this cog. Maybe it's my bike...maybe it's the cog. Either way, it's on the way back to Jenson.

                        • Was this a gift?:
                        • No

                        (1 of 1 customers found this review helpful)

                         
                        1.0

                        Chain jumps on the e13 42T

                        By MartinD

                        from Montreal,QC,Canada

                        About Me Avid Cyclist

                        Verified Buyer

                        Pros

                        • Easy To Install

                        Cons

                          Best Uses

                          • Mountain Biking

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

                          I bought an e13 for extended Range Cog 42T Sram. I use my e13 with Sram X9 Type 2, 10 Speed. Everything is new, derailleur, chain (PC-1071) and cassette. Chain jumps on the e13 42T, plus it deforms easily. I had to file down the teeth of Sprocket for it no longer jumps.

                          • Was this a gift?:
                          • No

                          Displaying reviews 1-10

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                          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.