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Surly Single Speed Cog

USD$30.00
Item #: CS409C06
USD$30.00
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Surly's BMX / Singlespeed cogs fit the (common) splines of Shimano/SRAM and Shimano-compatible freehub bodies - thats virtually every MTB hub on the market today. Built of practically indestructible hardened chromoly steel, these cogs are ready to lick up what you dish out. Larger sizes include drillings to save weight.

  • Incredibly durable SCM-415 hardened chromoly steel
  • Designed for use with 3/32" (i.e., 8/9/10 speed) chains
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REVIEW SNAPSHOT®

by PowerReviews
Surly Single Speed Cog
 
4.5

(based on 30 reviews)

Ratings Distribution

  • 5 Stars

     

    (21)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

93%

of respondents would recommend this to a friend.

Pros

  • Durable (19)
  • Easy to install (12)
  • Attractive (9)
  • Easy to use (5)
  • Lightweight (3)

Cons

No Cons

Best Uses

  • Mountain biking (12)
  • Mountain bikes (5)
    • Reviewer Profile:
    • Avid cyclist (16), Competitive cyclist (3)
    • Was this a gift?:
    • No (20)

Most Liked Positive Review

 

Solid Unit

Intelligent design which includes being able to better align the cog with the chain line depending upon which side you have facing outward. Longer teeth help to minimize the incidence of slippage and maximize...Read complete review

Intelligent design which includes being able to better align the cog with the chain line depending upon which side you have facing outward. Longer teeth help to minimize the incidence of slippage and maximize chain wrap. Larger sizes have been drilled (see picture) to reduce weight penalty. Mating surface of cog to free hub has a wider contact patch thus reducing the potential of shearing and damaging your free hub.

VS

Most Liked Negative Review

 

lots of chain slip

I bought this to get a faster ratio than my previous setup, but I ended up with a lot of chain skipping when accelerating to climbing hills. I tried two other chains (both...Read complete review

I bought this to get a faster ratio than my previous setup, but I ended up with a lot of chain skipping when accelerating to climbing hills. I tried two other chains (both brand new), and tried a new tensioner. No change. The chain rollers like to ride up over the teeth on the sprocket, even with 180 degrees of chain wrap on the sprocket.

Switching to an Endless rear sprocket solved the chain skip problem completely. Same chain, same tension, same amount of chain wrap, just no more skipping. I'm done with Surly sprockets.

Reviewed by 30 customers

Displaying reviews 1-10

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5.0

Love this Cog

By Tom

from Salt Lake City UT

About Me Competitive Cyclist

Verified Buyer

Pros

  • Great Components
  • Rugged

Cons

    Best Uses

    • Cross Country

    Comments about Surly Single Speed Cog:

    Great Cog

    • Was this a gift?:
    • No
     
    5.0

    Awesome durability

    By rideyobike

    from Washington

    About Me Avid Cyclist

    Verified Buyer

    Pros

    • Attractive Design
    • Durable
    • Easy To Install

    Cons

      Best Uses

      • Mountain Biking

      Comments about Surly Single Speed Cog:

      Great design and extremely durable for single speed use. It is a big step up from removing and using cogs from a multi-speed cassette for single speed use. Derailleurs suck!

      • Was this a gift?:
      • No
       
      4.0

      Big boys gotta have a cog that doesn't shred under pressure

      By BigBoa

      from Rome, Ga

      About Me Avid Cyclist

      Verified Buyer

      Pros

      • Durable
      • Easy To Install

      Cons

        Best Uses

        • Mountain Biking

        Comments about Surly Single Speed Cog:

        It's a single speed cog. It works for my 240lb butt and doesn't die a few weeks after install.

         
        5.0

        Can't lose on a 22!

        By el Scotto

        from Nashville, TN

        About Me Avid Cyclist

        Verified Buyer

        Pros

        • Attractive Design
        • Beefy
        • Durable
        • Easy To Install

        Cons

        • Beefy
        • Heavy

        Best Uses

        • Mountain Biking

        Comments about Surly Single Speed Cog:

        I can't run any smaller of a chain ring up front, so I had to get a bigger cog in the back! I went from a 20t to a 22t, and it sure makes a difference!

        • Was this a gift?:
        • No
         
        5.0

        great product!

        By Al

        from Atlanta, GA

        About Me Avid Cyclist

        Verified Buyer

        Pros

        • Attractive Design
        • Durable
        • Easy To Install

        Cons

          Best Uses

          • Mountain Biking

          Comments about Surly Single Speed Cog:

          looks good and works well.

          • Was this a gift?:
          • No
           
          4.0

          these just work

          By skol

          from Granger, IN

          About Me Avid Cyclist

          Verified Buyer

          Pros

          • Durable
          • Wide Base

          Cons

            Best Uses

              Comments about Surly Single Speed Cog:

              not the lightest out there but very durable and wide base. I mounted it up for a 100 mile mtb race and no issues with dropped chain etc.

              • Was this a gift?:
              • No

              (1 of 1 customers found this review helpful)

               
              5.0

              great product

              By pico

              from Ecuador

              About Me Competitive Cyclist

              Verified Buyer

              Pros

              • Durable

              Cons

              • Bulky

              Best Uses

              • Mountain Bikes

              Comments about Surly Single Speed Cog:

              great single speed cog. the 22t gives a great climbing gear combined with a 33t chainring.

              people can say it's heavy, but 20g really doesn't make a big difference...

              • Was this a gift?:
              • No

              (1 of 1 customers found this review helpful)

               
              5.0

              Good strong cog

              By Cheech

              from Grand forks

              About Me Avid Cyclist

              Verified Buyer

              Pros

              • Durable
              • Easy to Use

              Cons

                Best Uses

                • Commuting
                • Mountain Bikes

                Comments about Surly Single Speed Cog:

                Good strong cog, has the added benefit of being offset. Which makes it easy to line up your chain line.

                • Was this a gift?:
                • No

                (1 of 1 customers found this review helpful)

                 
                5.0

                Gears are for...

                By Danc

                from Oklahoma

                About Me Competitive Cyclist

                Verified Reviewer

                Pros

                • Durable
                • Easy to Use
                • Lightweight

                Cons

                  Best Uses

                  • Cyclocross
                  • Mountain Bikes
                  • Road Bikes

                  Comments about Surly Single Speed Cog:

                  I use this on my single speed cross bike. I have 19, 20, and 22, for different race conditions. Wider contact with the free hub for better stability. works well with Surly single speed conversion kit.

                  • Was this a gift?:
                  • No

                  (1 of 1 customers found this review helpful)

                   
                  3.0

                  Works fine, cheaper options out there.

                  By Elsanto

                  from Plainfield Nj

                  About Me Avid Cyclist

                  Verified Reviewer

                  Pros

                  • Durable
                  • Easy to Use

                  Cons

                    Best Uses

                    • Mountain Bikes

                    Comments about Surly Single Speed Cog:

                    I was using this on my SS 29er but wanted to try some different gearings out. I bought a cheap multi-cog kit from here for the same price as this one cog. my legs can't tell the difference between the cheap ones and this one.

                    • 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.