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Sports & Outdoors > B004ALR5TY
  1. Sturmey Archer Cog 20T
    Image(s) provided for illustrative purposes and may differ from the actual product
  2. Sturmey Archer Cog 20T

    Delivery: 10-20 Working Days
    Customer Ratings (5 reviews)

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Most Helpful Customer Reviews

Nothing to complain about. Fits on new and old 3-splined Sturmey-Archer hubs, of course. This is a good choice for a vintage 3-speed (which most likely comes with a 46 tooth front chain ring). A 46/20 gear ratio makes Ann Arbor hills less harsh for me and I can still keep up with 25 mph traffic on my heavy old Raleighs and Schwinns. For those with a 48 tooth chain ring, a 21 tooth would give equivalent performance.
This is a real Sturmey-Archer cog, to suit 3 speed hubs like the AW. It seems to me that since being acquired by Sunrace, Sturmey-Archer components have improved in quality, and are quite reasonably priced. I bought this to change the ratios on an old Columbia Sport-3 that I use as a commuter. Having parts support for 100 year old internal gear hub designs is amazing! Thanks, Sunrace, for keeping Sturmey-Archer alive.
This is the cog that works best with my kickshift hub and 39t chainwheel in my rolling neighborhood. These cogs are cheap and available in many sizes. Learn how easy it is to change them. Changing chainwheels is expensive. Get a chainbreaker tool and you're set.
Please Note

The authorised South African distributor of this product is under no obligation to honour the manufacture's guarantees/warranties or to provide after-sales service.

Please note that this item is imported from the USA, and is designed to be used in the USA. In addition, if the unit is powered it will come with a US plug and an adapter/transformer may be required. Please click here for more information on power requirements, or check with us if you are unsure or need any assistance!

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