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  1. #1
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    raleigh rear sprocket

    I would like to change out the 18 tooth to a 22 tooth sprocket on my 3 speed. There isn't enough room left on the drop outs so the chain will have to be lengthened. Anyone have any idea how many links I would need? Can I add extra links using connector links?

  2. #2
    Senior Member Bill Kapaun's Avatar
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    You should need 1 link SET. The chain wraps around HALF the sprocket, so divide the increase by 2.

  3. #3
    Gone, but not forgotten Sheldon Brown's Avatar
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    Quote Originally Posted by bobn View Post
    I would like to change out the 18 tooth to a 22 tooth sprocket on my 3 speed. There isn't enough room left on the drop outs so the chain will have to be lengthened. Anyone have any idea how many links I would need? Can I add extra links using connector links?
    For each tooth added/subtracted to a sprocket, the axle must move 1/8" (3 mm.)

    For each complete link (1 inner + 1 outer) the axle moves 1/2" (13 mm).

    However, different makes/models of chain sometimes have different thickness pins. As a result, you may not be able to find a matching link.

    Chains are cheap, my advice is to replace the present chain along with the sprocket.

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