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Thread: Atc 200x 83-85 rear axle upgrade options

  1. #1
    oldoo's Avatar
    oldoo is offline At The Back Of The Pack Arm chair racerFirst time rider
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    May 2017
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    Australia
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    Atc 200x 83-85 rear axle upgrade options

    Hi all,

    Looking to upgrade the rear axle on my 200x.

    Iíve heard 82 250r will fit or 300ex?

    Iím in Australia so local parts are far and few between. I just want the most cost effective way to make it work. Machining and wedding/fab is not an issue to make it happen.

    Any input is appreciated.

    Cheers


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  2. #2
    Join Date
    Jul 2005
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    Manheim, PA
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    82 r fit bolt in

    300ex fits but swinger must be modifed since its a good 1/2 wider between bearing surfaces. Also nothing rear brake mounts up or chain unless you can fab new conversions.

    I've done both.
    Hreatv has done both
    Most wont spend $500-600 on a rear but you will spend that for a durablue 82 r axle anyway.

    Swinger carrier bearings are the same between 200x and 300ex...all the hondas are. I had ran all the part numbers before my swap.

    The one i liked the best was 300ex but unless you can crunch # over come challenges....stay away.

    It's not bolt in go ride

    I got away from 200xs due to all the dump obsolete crap every time redoing one oem axles are always bent.

    last 4 pics are 1982 atc250r durablue axle, I had a trx450r rear caliper on the +1.5" swinger I had built. HREatv.com can build you this if needed.
    Attached Thumbnails Attached Thumbnails b.jpeg   20160206_115506.jpg   20151218_173418.jpg   20151218_173400.jpeg   100.JPG   99.JPG  

    76.jpg   71.jpg  
    Last edited by oldskool83; 03-29-2021 at 10:01 PM.

  3. #3
    oldoo's Avatar
    oldoo is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    May 2017
    Location
    Australia
    --
    154
    Quote Originally Posted by oldskool83 View Post
    82 r fit bolt in

    300ex fits but swinger must be modifed since its a good 1/2 wider between bearing surfaces. Also nothing rear brake mounts up or chain unless you can fab new conversions.

    I've done both.
    Hreatv has done both
    Most wont spend $500-600 on a rear but you will spend that for a durablue 82 r axle anyway.

    Swinger carrier bearings are the same between 200x and 300ex...all the hondas are. I had ran all the part numbers before my swap.

    The one i liked the best was 300ex but unless you can crunch # over come challenges....stay away.

    It's not bolt in go ride

    I got away from 200xs due to all the dump obsolete crap every time redoing one oem axles are always bent.

    last 4 pics are 1982 atc250r durablue axle, I had a trx450r rear caliper on the +1.5" swinger I had built. HREatv.com can build you this if needed.
    Thanks mate I will look into it. Looks like Iíll go for 82r axle and possibly just fab up a bracket to run a newer/better brake caliper. I have a brembo caliper off a Ktm here I could use.

    Cheers


    Sent from my iPhone using Tapatalk

  4. #4
    Join Date
    Jul 2021
    Location
    Nova Scotia
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    I have an '83 200x with a '98 KDX220 engine in it, I also have a few other ATC's/ATV's/Dirt bikes including a '04 TRX450r and a '01 400ex and I have noticed that the share a lot of compatible parts so I am deciding on installing a extended TRX450r axle in the rear and all I need to do it is run some 40x62x24 bearings and I should be good! I will make sure to get some before/after pictures when its done. I also have a 400ex rear brake caliper on it.

  5. #5
    Join Date
    Apr 2014
    Location
    Edmond, KS
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    2,208
    Please do. We all like pictures and good information.

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