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Thread: Slow speed steering wobble with 2008 Suzuki Trike

  1. #11
    Lehman / Champion Guru
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    Lee H. Mann's Avatar
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    Cool

    William, If Randy can't help, try this guy.

    https://www.customtripletrees.com/
    Jim Murphy
    Lehman Tech since 1998
    Champion Tech since 2005
    Lehman & Champion Dealer Owner Operator
    Iron Butt Rider 2001

    WHEN HELP IS OFFERED, A SIMPLE "THANK YOU" IS APPRECIATED.

  2. #12
    300+ Posts dougv's Avatar
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    Jim I was going to mention the rear tire pressure but you mentioned 20 pounds on the rears and 38 pounds on the front, hot. What would be the cold temperature pressure, I have the Avon trike tire for the front and everywhere I see, it should be set to 41 pounds cold. I have set my rears to as low as 20 pounds cold.

    I have an older CSC sport on a 97 Goldwing with a straight axle and did notice the shake over rough roads but it is better with the lower rear tire pressures. I ran into a guy in Florida that was running over 40 pounds in his rear with an independent suspension and was complaining of a rough ride.....no doubt it was....

  3. #13
    Lehman / Champion Guru
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    Lee H. Mann's Avatar
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    Quote Originally Posted by dougv View Post
    Jim I was going to mention the rear tire pressure but you mentioned 20 pounds on the rears and 38 pounds on the front, hot. What would be the cold temperature pressure, I have the Avon trike tire for the front and everywhere I see, it should be set to 41 pounds cold. I have set my rears to as low as 20 pounds cold.

    I have an older CSC sport on a 97 Goldwing with a straight axle and did notice the shake over rough roads but it is better with the lower rear tire pressures. I ran into a guy in Florida that was running over 40 pounds in his rear with an independent suspension and was complaining of a rough ride.....no doubt it was....
    Optimum tire pressure should variate between 3 and 4 pounds from hot to cold. And I don't mean cold at below freezing temps. Cold temperatures of 55-75 degrees.

    Get a cheap pyrometer pyrometer.jpg to check tire temperatures cold and then hot after normal riding at highway speeds. I would Never exceed 170 F on the front tire. Increasing the air pressure 1 or 2 pounds will decrease the temperatures significantly.

    Most people don't pay that much attention to their air pressures and allow them to run low creating rapid wear and overheated temperatures.

    Keeping the air pressure a little higher kinda solves this problem.

    If you are the rider that keeps his eye on tire pressures, the recommended pressure is on the side of the tire.

    If you are a spirited rider, up the recommended pressure 1 or 2 pounds.

    If you carry a combined rider/passenger weight, do the same as above.

    Rear tire pressures for a Trike should be the same rule, except for manufacturers pressure recommendations.

    Start at 20 pounds and see what the pressure differentials are (3 to 4 pounds) and the temperatures are.
    Jim Murphy
    Lehman Tech since 1998
    Champion Tech since 2005
    Lehman & Champion Dealer Owner Operator
    Iron Butt Rider 2001

    WHEN HELP IS OFFERED, A SIMPLE "THANK YOU" IS APPRECIATED.

  4. #14
    10+ Posts OntarioLes's Avatar
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    Default Thanks!!

    Hi Lee H. Mann,

    Thanks for the tip! Also I did adjust the air pressures with some improvement in the head shake. Checking with Randy and will look into Custom Triple Trees.

    This forum is amazing - great ideas and feedback!
    OntarioLes

    Eastern Ontario
    2008 Suzuki Boulevard Trike

  5. #15
    300+ Posts dougv's Avatar
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    Lee, I'll have to try that. I was concerned about lower pressure in the front tire and rolling off the rim since the front sees a lot more side pressure than a normal bike. I think our shop may have a temp sensor I can borrow, if not will look for one. I did have the front down lower than what I would normally have it set at and noticed the steering force was a lot higher. At 41 pounds the front end is pretty rough over bumps.....thanks for the info

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