Yamaha OEM wheel sprockets that fit TWs
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  1. #1
    Banned qwerty's Avatar
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    Digging around some old files I found this list of Yamaha OEM wheel sprockets that will fit the TW wheel hub. I've always had good service from OEM Yamaha sprockets and pricing from online sources is usually competitive with aftermarket. I don't remember how I figured what would fit and what wouldn't--probably went to an aftermarket suppliers engineering drawings and compared the bolt circles and chain size to develop a list of bikes with the same parameters. Anywho, the tooth count is the last 2 digits of the second set of numbers; i. e., 248-25445-10-00 is 45T. 248-25451-10-00 is 51T. If memory serves, in those instances where a number has been superceded, both the old and new numbers are listed. Some sprockets are black, some are silver--depends on year on some models. The following tooth counts are available from Yamaha: 42, 44, 45, 47, 48, 49, 50, 51, 53, 55. I've eyeballed several of these numbers side-by-side and not yet found any fitment problems, but be sure to double check before plunking your money down.



    DT125 74-80 DT175 74-81

    4V1-25444-10-00

    248-25445-11-00

    248-25448-11-00

    248-25451-11-00

    248-25451-10-00



    MX175 75-81

    401-25445-00-00

    401-25447-00-00

    401-25449-00-00



    YZ80

    15A-25450-11-00

    4V1-25444-10-00

    4V1-25442-10-00

    15A-25445-11-00

    3R1-25451-10-00

    3R1-25453-10-00

    15A-25445-10-00

    3R1-25453-10-00



    XT200 82-83

    15A-25447-10-00



    TW200 85-current

    15A-25450-11-00

    15A-25450-10-00

    15A-25445-10-00

    15A-25445-11-00



    XT350 85-00

    55V-25455-50-00



    XT225 01-07

    1KH-25445-00-00



    RT180

    3VC-F5451-00-00




  2. #2
    Member praeses's Avatar
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    Wow, great timing, was just trying to buy a sprocket yesterday but got notification today they couldn't get it. Just sticking these parts numbers in google returns some decent prices.
    2008 TW200 Yamaha luggage rack w/small el-cheapo JC Whitney trunk and large tool tube, Jimbo Shield, re-wired headlight, Blaster Shock waiting to be installed.

    1989 TW200 Work in Progress

    1994 ZX6E (rebuilt transmission, then rebuilt replacement motor, then rebuilt transmission in replacement motor, fun fun) large JC Whitney trunk fixed to the back of a computer chair re-welded to make a nifty luggage rack

  3. #3
    Super Moderator goldenhtr's Avatar
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    A very very wise man once said “it’s more fun to ride a slow bike fast, than a fast bike slow”.

    "Now then get your weapons... and go out to the open country to hunt some wild game for me"
    Gen:27:3

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  5. #4
    Banned qwerty's Avatar
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  6. #5
    Senior Member Xracer's Avatar
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    Your parts person can log onto the Yamaha system and do a search.By typing in a part number it will tell them all the models and years it will fit. That's how I was able to find that the clutch/disc brake levers for the Dub where the same as the YZ-85. Using that info. I was able to order an aftermarket set that listed the YZ-85 but not the T.W.

  7. #6
    Banned qwerty's Avatar
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    That system supposedly only works if the parts interchange. Sprockets with different tooth counts do not interchange, but they will still bolt up if someone wants to change final drive ratio.




  8. #7
    Senior Member Xracer's Avatar
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    Quote Originally Posted by qwerty View Post
    That system supposedly only works if the parts interchange. Sprockets with different tooth counts do not interchange, but they will still bolt up if someone wants to change final drive ratio.
    True. Sometimes you have to do a little more home work but if you know how to use the system it can give some good places to start.

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