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Thread: Stable tires for the RT

  1. #1
    Registered User KARSTEN's Avatar
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    Jun 2004
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    Mobile,Al.
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    Stable tires for the RT

    Just recently added a 1988 R100RT to the stable.Having heck of a time to figure out a handling problem:at high speeds(70Mphand above)the bike drifts(wanders,hunting etc.)sideways without any warning.checked the usual culprits,swingarm and steering bearings,tire pressure etc.,forks feel soft, changed fluid,still soft,mismatched tires, front is a michilin macadam, rear is a dunlop.Am ready to put new shoes on the bike.any suggestions?
    looking for stability reather than a sports tire.
    thanks in advance,
    Karsten

  2. #2
    Focused kbasa's Avatar
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    Mar 2003
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    Marin By God County, California
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    Moved this over to airheads for ya.
    Dave Swider
    Marin County, CA

    Some bikes. Some with motors, some without.

  3. #3
    Old and Slow....Sorta. bmwmick's Avatar
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    Mar 2003
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    Tucson, AZ
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    Karsten,
    You should be OK with these:
    Michelin
    Macadam 50E
    Front 90/90-18 51 H TL/TT
    Mac50
    Rear 120/90-18 65 H TL/TT

    I really liked these tires on my R100RS AND on my K1100LT.

    HTH,
    Mick
    Mick
    Tucson

  4. #4
    Registered User R100RS's Avatar
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    I have the Dunlop K491's on my 1988 RS and I am exceptionally happy with them. As good (and more) handling as I ever need, good wear so far, very stable. I used to have K591's (a bit more sport oriented than the 491's), but was not happy with the wear (and they no longer make them). My slow-poke rear end has not noticed any performance decline moving from the 591 to 491.

    I know you said you've checked all of the usual suspects, but it sounds like your steering head bearings are too tight.
    -Mike

    '02 R1150R
    '88 R100RS

  5. #5
    Patsplace
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    Jul 2004
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    Powell River, BC.
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    Yup, sounds like steering head bearings to me too.
    Pat

  6. #6
    On the road again! R80RTJohnny's Avatar
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    Jun 2003
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    Ottawa, Ontario, Canada
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    861
    Hello,

    Go for the Michelin Macadam's. They truly are good tires. They track well and provide good feedback. I ran Metzlers (sic) for years and was not able to find the right tire pressure for them or their handling was "off". I even thought about changing the suspension on the bike because of this. And by all means stay with the stock recommendations.

    Good luck.

    PS: I bought the Michelin's on a whim as they were quite cheaper. Go figure. Do not judge a tire by it's price.

    Dealer rec.: 37 psi front and 38 psi rear for solo riding.
    2008 R12RT (Blue)
    1986 R80RT (Silver)

    Member of the Loonie-Tics. MOA 292.

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