Cornering Techique

Discussion in 'Hacks' started by QatarRider, Apr 25, 2012.

  1. Marvin and towser

    Marvin and towser Plain Mr. Botany (B)

    Joined:
    Apr 29, 2012
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    52
    Location:
    Cumbria UK
    I have a Honda SLR which is a sort of budget built dominator for those not in the know so its fairly tall with a light squire side car and am also in the UK. I am quite new to sidecars but quickly learnt to shift my weight it just feels better / safer. I have no ballast apart from sometimes a 22 Kg daughter and sometimes a 25 kg dog. I'm also still on telescopic forks and find that leaning can help shove the bars round.
    #21
  2. Bobmws

    Bobmws Curmudgeon At Large

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    Jun 6, 2005
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    1,410
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    Same trailer, different park, FL
    If you draw a triangle using each wheel as a point, any weight added outside of the lines increases the possibility to tip over that axis. One instance where thinking outside the box (triangle) is not innovative!
    Take a S/TEP class or at least get a copy of the Yellow book before you purchase to gain a better understanding of what you are in for.
    #22
  3. FirstPath

    FirstPath Long timer

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    As stated, drawing a triangle and connecting all 3 wheels is a great way to see where weight should be put. Too much weight in the nose or stored up top on a tub rack can increase your odds of this...

    http://www.youtube.com/watch?v=fEGIVTfMvv0

    Scott in Shoreview
    '79 Suzuki GS550
    #23
  4. jeffygs

    jeffygs Been here awhile

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    so with that info is it better to have more weight in front of the front axis to increase forward tip over or aft of the rear axis like in a rear storage or even saddle bags which increases the aft tip over . Which is safer and why? I have a lot of stuff to haul this summer in my rig.
    #24
  5. GreatWhiteNorth

    GreatWhiteNorth Long timer

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    jeffygs - You really should read some info on-line to get a good understanding. The USCA site has free .pdf dowload of the Hal Kendall books. Very good reading - a "must read" for the novice IMO. USCA site is sidecar.com.

    I try to keep extra ballast low and rearward in the car to help keep the C of G as low as possible. You gota be safe about what you use for ballast too. Lots of info here in this forum on that already... and on the USCA forums.
    #25
  6. NitroMax

    NitroMax Been here awhile

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    Netherlands, Europe
    He's right, I printed it and read it a couple of times ( ànd took a days lesson :D )
    #26
  7. BeeMaa

    BeeMaa Hack Pilot

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    Not a good day for them, but proves the point very well.
    Even in a left-hander (with a right sided car), you need to be careful.
    Cheers.
    #27
  8. HogWild

    HogWild Scott Whitney

    Joined:
    Nov 12, 2003
    Oddometer:
    2,792
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    SoCal USA
    That's a sort of ok general way to look at it, but may be somewhat misleading. Height has as much effect as horizontal position. If you put a heavy weight high up and just inside the triangle, it’s way worse than that same heavy weight very low and just outside the triangle. That’s because the centrifugal force in a sharp turn will make the high up weight appear to be outside the triangle.

    Weight outside the triangle can actually help, depending on which way you’re turning and which side the weight is on. In sidecar racing, the main job of the passenger is to put his weight outside that triangle as far as possible and as low as possible to help get around the turn without tipping over. Of course putting that weight in the opposite direction in a turn will result in an immediate crash!

    [​IMG]


    You want the weight to always be towards the inside of each turn. If the weight never moves, then the best place is as low as possible, and somewhat centered between all 3 wheels.
    #28
  9. jeffygs

    jeffygs Been here awhile

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    Although I am a Noob I have done the reading, including the great yellow book, sidecar.com and have done lots of research on the issue of loading and driving tech and cg is something I understand well( cg vs stability vs maneuverability) . The handling of my rig is wonderful although I have nothing to compare it to(yes I did the realignment after I purchased it. It was all screwed up.) I only have a few thousand miles of diving a hack but try hard to get as much info as I can get I know now that it is experience that will matter most. What I was seeking is more information from knowledgeable people such as yourself and I know Claude is lurking also:D.
    aQUOTE=GreatWhiteNorth;18584969]jeffygs - You really should read some info on-line to get a good understanding. The USCA site has free .pdf dowload of the Hal Kendall books. Very good reading - a "must read" for the novice IMO. USCA site is sidecar.com.

    I try to keep extra ballast low and rearward in the car to help keep the C of G as low as possible. You gota be safe about what you use for ballast too. Lots of info here in this forum on that already... and on the USCA forums.[/QUOTE]
    #29
  10. jeffygs

    jeffygs Been here awhile

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    this is great information
    #30
  11. Sidecardoug

    Sidecardoug Pleasantly pleasing

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    I shift my weight as well as using the throttle and brake. Hanging off has become second nature to me. The amount of hang off depends on the speed, the sharpness of the corner and if I have anything in the hack.

    Sometimes it's just a shoulder shrug:

    [​IMG]
    #31
  12. Feedback Cycle

    Feedback Cycle Been here awhile

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    Nov 25, 2011
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    Michigan
    I shift my weight a little but definitely don't hang off.

    I find I can't control the throttle and front brakes if I'm too far over.

    Also, I find that I need a lot of pressure on the bars. If my legs aren't squeezing the tank, I don't have enough leverage.

    On a side note, my sidecar cg is extremely low as there is no tub. It is difficult to get it to fly unless extremely provoked because it is very wide. Often, I will be overcome by the force on the bars in a tight corner or feel drifting of the tires before the car comes up.
    #32
  13. GreatWhiteNorth

    GreatWhiteNorth Long timer

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    Jeffygs - you're well on your way man. Took a friend for a very spirited ride tonight. Definitely so much easier to ride faster/harder with a passenger (monkey!) on board in the hack.

    [/QUOTE]
    #33