Chain length for 15t front 50t rear? (search not working)
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Thread: Chain length for 15t front 50t rear? (search not working)

  1. #1
    Junior Member DanTW's Avatar
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    Hello, I apologize if this question has been asked before but this forum's search function seems to not be working.



    I have a 2001 TW200 (it's the first one with a disc front brake) and I would like to convert to a 15t front sprocket and keep the rear sprocket stock (which I believe is a 50t sprocket). Could you tell me which chain length I should buy? Thanks!



    Dan

  2. #2
    Senior Member Rainman's Avatar
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    Quote Originally Posted by DanTW View Post
    Hello, I apologize if this question has been asked before but this forum's search function seems to not be working.



    I have a 2001 TW200 (it's the first one with a disc front brake) and I would like to convert to a 15t front sprocket and keep the rear sprocket stock (which I believe is a 50t sprocket). Could you tell me which chain length I should buy? Thanks!



    Dan




    I plugged your info into the chain calculator and it popped back 122.395 links. So you will either need a 122 or 124 link chain. For example, with my 14/55 setup I can use a 124 link chain and put my adjusters on 2, but with a 126 link chain they are on one notch under 6.
    If you can't find it, grind it

    1990 TW200

  3. #3
    Junior Member ozzie's Avatar
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    I converted my 2013 TW to a 15T front sprocket and O-ring chain and used chain cut to 120 links. Only 1 tooth difference on the front sprocket should not make any difference in chain length.
    TWilight likes this.

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  5. #4
    Senior Member GaryL's Avatar
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    Quote Originally Posted by ozzie View Post
    I converted my 2013 TW to a 15T front sprocket and O-ring chain and used chain cut to 120 links. Only 1 tooth difference on the front sprocket should not make any difference in chain length.
    Stock gearing of 14/50 takes a 122 link chain. Going up one tooth in the front should require a tad longer chain but I am sure the 122 would be fine. I have no idea how you made a 120 link chain fit unless you mis typed or mis counted.

    GaryL
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  6. #5
    Junior Member ozzie's Avatar
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    I previously stated that with a 50T rear sprocket and a 15T front takes a 120 link chain. I dug my old chain out and counted the links, It had 122 links. Sorry about the misinformation.
    admiral and GaryL like this.

  7. #6
    Senior Member scotti158's Avatar
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    Yep, 122. My '96 came with a stock rear and 15 tooth front with 122 links in the chain, which is the stock length.
    grewen likes this.
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