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Thread: '87 250SX rear shock replacement

  1. 02-14-2017, 04:50 PM #1
    Helopilots's Avatar
    Helopilots
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    '87 250SX rear shock replacement

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    I've been looking for a thread on here that would solve the problem of replacing the rear shock on a SX with something upgraded from the original. I found a thread that had a vague suggestion with added parts to make it work.

    I replaced the rear shock with a '93-'00 TRX300 rear shock and it needed no mods. Bolted right up with the original hardware and no spacers or dowels. I hope this helps anyone who was thinking of upgrading or replacing.
    '87 ATC 250SX
    '86 ATC 350X
    A bunch of stuff-n-stuff
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  2. 02-14-2017, 06:46 PM #2
    atcmatt
    atcmatt is offline Power User Got the holeshot
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    How does it compare with the original? Maybe feels better because it's newer?

    Matt
    1980 ATC 70 Needs Restoration
    1985 ATC 250es Fully Refurbed
    1986 ATC 350x Mint Original
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  3. 02-14-2017, 08:42 PM #3
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    Quote Originally Posted by atcmatt View Post
    How does it compare with the original? Maybe feels better because it's newer?

    Matt
    At its current setting, this feels like a new SX shock should feel. It's at a mild setting and the good thing is that this shock has a rebound adjustment and plenty of compression left, unlike the original. I'm 220 lbs, so the original shock in the best condition is at its limit. I'll have to experiment with stronger settings to see if it offsets the front. I just replaced the fork seals and oil so they're at peak. Of course, the SX isn't a track bike so I'm not looking to shave off seconds on the backyard trails. As long as the tires stay off the fenders, I'm happy.
    '87 ATC 250SX
    '86 ATC 350X
    A bunch of stuff-n-stuff
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  4. 02-14-2017, 08:54 PM #4
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  5. 02-14-2017, 08:57 PM #5
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    Great mod find> I see some on eBay for $42.98 shipped.

    http://www.ebay.com/itm/Progressive-...VVjEPx&vxp=mtr
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    1986 Honda TR200 Fat Cat
    http://www.3wheelerworld.com/showthr...-Fat-Cat-TR200
    1985 Honda 250SX
    http://www.3wheelerworld.com/showthr...1985-ATC-250SX
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  6. 02-14-2017, 08:59 PM #6
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    Your Bronco one is $81.43 shipped

    http://www.ebay.com/itm/BRONCO-ATV-G...FWLuVK&vxp=mtr
    _______________________________
    1986 Honda TR200 Fat Cat
    http://www.3wheelerworld.com/showthr...-Fat-Cat-TR200
    1985 Honda 250SX
    http://www.3wheelerworld.com/showthr...1985-ATC-250SX
    1982 Honda 250R
    http://www.3wheelerworld.com/showthr...982-Honda-250R
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  7. 02-15-2017, 05:28 AM #7
    atcmatt
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    Wow sounds like a good upgrade, guess it would work perfectly on a 250es also? Think they have identical rear ends.
    1980 ATC 70 Needs Restoration
    1985 ATC 250es Fully Refurbed
    1986 ATC 350x Mint Original
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  8. 02-15-2017, 09:34 AM #8
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    Quote Originally Posted by MPDano View Post
    Your Bronco one is $81.43 shipped

    http://www.ebay.com/itm/BRONCO-ATV-G...FWLuVK&vxp=mtr
    This one looks incorrect. I don't know if being for a 4x4 is the difference
    '87 ATC 250SX
    '86 ATC 350X
    A bunch of stuff-n-stuff
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  9. 02-15-2017, 03:01 PM #9
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    Mike can you list the exact part number for the correct Bronco shock?
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  10. 02-16-2017, 09:45 AM #10
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    Quote Originally Posted by fabiodriven View Post
    Mike can you list the exact part number for the correct Bronco shock?
    This is the exact shock that I ordered. The only part number that I found is SU1102. The ebay ad also says that it will NOT fit the 300EX. I guess I just stumbled on an exact fit shock.

    http://www.ebay.com/itm/272453608826
    '87 ATC 250SX
    '86 ATC 350X
    A bunch of stuff-n-stuff
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  11. 02-16-2017, 10:40 AM #11
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    Quote Originally Posted by Helopilots View Post
    This is the exact shock that I ordered. The only part number that I found is SU1102. The ebay ad also says that it will NOT fit the 300EX. I guess I just stumbled on an exact fit shock.

    http://www.ebay.com/itm/272453608826
    Good catch.
    _______________________________
    1986 Honda TR200 Fat Cat
    http://www.3wheelerworld.com/showthr...-Fat-Cat-TR200
    1985 Honda 250SX
    http://www.3wheelerworld.com/showthr...1985-ATC-250SX
    1982 Honda 250R
    http://www.3wheelerworld.com/showthr...982-Honda-250R
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  12. 05-11-2017, 04:38 PM #12
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    Awesome! Thanks man. I just ordered this one... I hope it works lol

    http://rover.ebay.com/rover/1/711-53...VVjEPx&vxp=mtr
    Last edited by 3wheelnewb; 05-11-2017 at 04:44 PM.
    1984 ATC 70
    1985 ATC 250sx sold
    1986 Yamaha 225 DRSsold
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  13. 05-16-2017, 04:13 PM #13
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    It works like a charm. Had to trim the top metal bushing but that was it. Nice find!
    1984 ATC 70
    1985 ATC 250sx sold
    1986 Yamaha 225 DRSsold
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