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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
 
2.8

(based on 12 reviews)

Ratings Distribution

  • 5 Stars

     

    (2)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (5)

50%

of respondents would recommend this to a friend.

Pros

  • Easy to install (7)
  • Attractive (6)
  • Lightweight (5)

Cons

  • Limited compatibility (3)

Best Uses

  • Mountain biking (9)
    • Reviewer Profile:
    • Avid cyclist (8)
    • Was this a gift?:
    • No (12)

Most Liked Positive Review

 

Works as advertised

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...Read complete review

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.

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 12 customers

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Displaying reviews 1-10

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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
     
    1.0

    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
                         
                        5.0

                        Perfect

                        By Jim the Runner

                        from San Jose, CA

                        About Me Casual/ Recreational

                        Verified Buyer

                        Pros

                        • Attractive Design
                        • Easy To Install
                        • Lightweight

                        Cons

                          Best Uses

                          • Mountain Biking

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

                          Running this on a 1x10 setup (XT) on my trail rig.
                          Great upgrade for minimal effort and low cost compared to say, full XX1.
                          Easy to install with clear step-by-step instructions and extra longer B screw.

                          • 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.