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Thread: sprocket sizes

  1. #1
    Baby Twin
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    sprocket sizes

    Hi guys along with changing my tyres this week I'm also changing the sprockets , current sizes are 16 and 42 when I got the bike a new chain was put on by the dealership. I want to change the sprockets for more torque but want to keep the chain what size is the right size to get so I can do this 15,44 ?? Any help would be great thanks.

  2. #2
    One Litre Duc Eater
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    Gen 1 or 2 mucker

  3. #3
    Baby Twin
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    Sorry should of said , gen 2 mate

  4. #4
    Evil Twin 2nd Chldhood's Avatar
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    15/44 should work

  5. #5
    AMA Pit Boss Keith B's Avatar
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    Quote Originally Posted by 2nd Chldhood View Post
    15/44 should work

    For a Gen2,the best combo is 15/42.
    The standard chain is too short to fit a 44t rear sprocket,...an extra link will be required.

  6. #6
    One Litre Duc Eater
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    Quote Originally Posted by Keith B View Post

    For a Gen2,the best combo is 15/42.
    The standard chain is too short to fit a 44t rear sprocket,...an extra link will be required.
    Why would you be fitting a standard chain though ? Surely if you're investing in nice new sprockets you're buying a decent DiD type chain etc.

  7. #7
    AMA Pit Boss Keith B's Avatar
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    Quote Originally Posted by weeksy View Post
    Why would you be fitting a standard chain though ? Surely if you're investing in nice new sprockets you're buying a decent DiD type chain etc.
    It was a typo,...i meant standard length chain,....anyroadup,the OP has had a new chain fitted by the dealer,...did you not read that?

  8. #8
    Superbike Twin bloke's Avatar
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    Quote Originally Posted by Keith B View Post

    For a Gen2,the best combo is 15/42.
    The standard chain is too short to fit a 44t rear sprocket,...an extra link will be required.
    i've got a 44 on ine with standard length chain.

  9. #9
    Baby Twin
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    15/42 is the best it suits the bike perfectly
    Steve

  10. #10
    AMA Pit Boss brooksy's Avatar
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    15/43 works a treat

  11. #11
    Baby Twin
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    sprocket sizes

    Whats the difference between 15-42 and 16-44?
    Dave

  12. #12
    One Litre Duc Eater Rizla's Avatar
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    Quote Originally Posted by Demon View Post
    Whats the difference between 15-42 and 16-44?
    Dave
    This link will give you all the information you need for any sprocket size combination. Gearing Commander: Motorcycle Speed, RPM, Chain & Sprockets Calculator

  13. #13
    Baby Twin
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    Sweet, thanks!

  14. #14
    One Litre Duc Eater Rizla's Avatar
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    You're welcome

  15. #15
    GP Champ Tifa's Avatar
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    Quote Originally Posted by bloke View Post
    i've got a 44 on ine with standard length chain.
    Yeah...me too.
    The axle is fairly snug in it's slot, but it IS do-able.
    Has the advantage of shortening the wheelbase a bit too, so in theory, it should turn in easier.
    But still waiting for V Rossi to confirm this for me though.
    Mine used to top out at 164mph....now it's more like 145ish.
    It rips through the gears like a scalded cat....and a little less jugga-jugga around town and in slow moving traffic.
    No noticeable difference in fuel consumption.
    All in all....recommended.

  16. #16
    Evil Twin
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    Who needs 164 mph anyway?

    It's all about acceleration and handling :-)
    Thanks from beano

  17. #17
    Baby Twin benjabien's Avatar
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    Let me know if it turns in easier at 145mph

  18. #18
    GP Champ Tifa's Avatar
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    can't guarantee it turns in easier....but I can guarantee it's easier to pull up out of a ditch.

  19. #19
    Baby Twin benjabien's Avatar
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  20. #20
    Baby Twin Daveish's Avatar
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    For the road. 15T with 44T is a hoot. Very quick through the gears. Who cares about top speed?
    Thanks from Rizla and semajohn89

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