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Thread: RX125 gearing?

  1. #1
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    17th January 2009 - 09:51
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    RX125 gearing?

    Hi, I was wondering what gearing people were running on RX125 Yamaha's on Kart Tracks.

    Mine currently has a 13 tooth front and a 38 tooth rear. I'm getting up to about 80 - 90 kmph
    at the end of the straight on our local track. I'm only just hitting fourth gear.
    I was wanting to make it a bit lower geared to get a bit more get up and go.
    But I'm not sure what size sprokets to go too. Any suggestions?

    Cheers
    Muzza

  2. #2
    Join Date
    23rd April 2004 - 19:16
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    The FXR150 front sprockets are apparently a straight swap. The bike I had was running a 14T on the front (i think) - not sure about the rear. I bought a 12T and a 13T for about $10 each.
    KiwiBitcher
    where opinion holds more weight than fact.

    It's better to not pass and know that you could have than to pass and find out that you can't. Wait for the straight.

  3. #3
    Join Date
    17th January 2009 - 09:51
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    A 12 tooth front was plan a) , do you recall what was on the back?

  4. #4
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    23rd April 2004 - 19:16
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    Ask Squiggles. He's got it now :-)
    KiwiBitcher
    where opinion holds more weight than fact.

    It's better to not pass and know that you could have than to pass and find out that you can't. Wait for the straight.

  5. #5
    Join Date
    13th April 2009 - 22:30
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    Quote Originally Posted by R6_kid View Post
    Ask Squiggles. He's got it now :-)

    You Speed People Die

    Just seen you quote

    Should be 'Mistakes happen people die'.

    If speed kills Michael Shoemaker should be dead.


    We are all traveling at 530 km per hour with the earth rotation. No one dies, but, if it had to stop, everyone does. ?
    ........Rules are for fools and a guide for the wise ..............

    http://www.marshland.co.nz

  6. #6
    Join Date
    23rd April 2004 - 19:16
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    Quote Originally Posted by marsheng View Post
    You Speed People Die

    Just seen you quote

    Should be 'Mistakes happen people die'.

    If speed kills Michael Shoemaker should be dead.


    We are all traveling at 530 km per hour with the earth rotation. No one dies, but, if it had to stop, everyone does. ?
    LOL, I honestly pity you. Do you really think I'm serious? It's a pisstake of the signs that they have up and down our state highways. Maybe if you got out more and rode your bike you'd know this. I've lost my licence for speeding in the past and will be the first to tell you that I don't always stick to the speed limit.

    p.s. PM me if you want your website sorted out.
    KiwiBitcher
    where opinion holds more weight than fact.

    It's better to not pass and know that you could have than to pass and find out that you can't. Wait for the straight.

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