compiled list of rear sprockets?
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  1. #1
    Senior Member fishhuntr1's Avatar
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    I mostly ride my TW off road. It may see a little blacktop around town or to gain access to a trail. I'd really like to re-gear so that 2nd pulls better. Often 1st is slower than I want, but 2nd I'd have to go too fast to develop the power to maintain speed. Same with engine breaking downgrade.

  2. #2
    Senior Member peruano's Avatar
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    It sounds like you want a 47 to go a bit faster in all the gears, but if you want to go a bit faster yet you want the 45. There is a gear calculator (search the old forum) and you can play with the obvious possibilities}. Some combinations have bad juju so don't get too radical. Tom
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  3. #3
    Senior Member fishhuntr1's Avatar
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    I want to go the other way, making 2nd more useable to me. I don't want to give up first. A lower first won't hurt. I really have no normal use for 5th.

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  5. #4
    Senior Member Rainman's Avatar
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    I'd go with a 14/54, or 14/55. I have the 14/55 combo. I use third gear mostly while riding, second in the turns, and first for steep hills (up or down).
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  6. #5
    Senior Member fishhuntr1's Avatar
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    I've found a 55 by JT. Decent sprocket? Anything available bigger than 55?



    Anything to the concept of not having two even numbered sprockets (wear)?

  7. #6
    Banned qwerty's Avatar
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    Sprockets are available through 70T.



    The higher the lowest common multiple of the tooth count and number of links in the chain the more even wear will be spread amongst the various teeth and links. The more spread out the wear, the longer the set lasts. 14/55 to 14/60 would be a good place to start. A 14/79 sprocket set would put 2nd exactly where 1st is with 14/50 sprockets.




  8. #7
    Senior Member fishhuntr1's Avatar
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    Some recommended vendors/mfg's? I haven't found anything bigger than 55 and that is by JT. I was wondering if someone here had compiled a list of available sprockets and where to purchase.



    Also, can chain length required be readily calculated?

  9. #8
    Senior Member TW_in_BC's Avatar
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    Quote Originally Posted by qwerty View Post
    Sprockets are available through 70T.



    The higher the lowest common multiple of the tooth count and number of links in the chain the more even wear will be spread amongst the various teeth and links.


    I've read about this somewhere before, but it didn't make sense to me...care to elaborate?
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  10. #9
    Senior Member RodneyReed's Avatar
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    Larger Sprockets = Less Wear

  11. #10
    Senior Member fishhuntr1's Avatar
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    Quote Originally Posted by TW_in_BC View Post
    I've read about this somewhere before, but it didn't make sense to me...care to elaborate?


    It has to do with wear being distributed. If you've had a nick in a chain and it keeps working on the same tooth, the wear will be accelerated. If it contacted every tooth the same number of times the wear would be distributed evenly extending the service life. Qwerty or someone prolly has some math examples.

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