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e.13 Extended Range Cog

Item #: CS224Z00
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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
 
2.8

(based on 8 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (3)

50%

of respondents would recommend this to a friend.

Pros

  • Attractive (4)
  • Easy to install (4)

Cons

  • Limited compatibility (3)

Best Uses

  • Mountain biking (6)
    • Reviewer Profile:
    • Avid cyclist (6)
    • Was this a gift?:
    • No (8)

Reviewed by 8 customers

Sort by

Displaying reviews 1-8

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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
                     
                    3.0

                    check freehub to hub clearance

                    By matt

                    from anchorage

                    About Me Avid Cyclist

                    Pros

                    • Attractive Design

                    Cons

                    • Limited Compatibility

                    Best Uses

                    • Mountain Biking

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

                    there isn't much clearance behind the cog. on my sun ringle charger pro hubs it would barely allow the lockring to go back on and then bound the freehub to the hub because it wasn't flush on the freehub and rubbed on the hub body. if you have lots of clearance between the freehub and hub body without much shoulder on the freehub you should be good, otherwise go with the other brands.

                    • Was this a gift?:
                    • No

                    (0 of 1 customers found this review helpful)

                     
                    3.0

                    good

                    By jimb

                    from quebec

                    About Me Avid Cyclist

                    Verified Reviewer

                    Pros

                    • Attractive Design
                    • Stiif

                    Cons

                    • Difficult To Install
                    • Limited Compatibility

                    Best Uses

                    • Mountain Biking

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

                    i install on a bH zenith 29er. the hubs are shimano anf the cassette is a slx 12-36 i think. i install the 42 tooth but wasn't able to install the smaller cog on the cassette when remove the 13 tooth. so i remove the 12 gear but the 13 tooth still slip it's not tight enough on the freewheel. Do i need to remove a space (where) or my freewheel isn't good quality enough ??? i try to solve my problem. on my other bike with a xt cassette and a sun ringle hub i install a one up 42t with no problem.

                    • Was this a gift?:
                    • No

                    Displaying reviews 1-8

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