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Queries about building reverse trike like T-rex

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  • [Photo Feature]: Queries about building reverse trike like T-rex

    Hello all,
    I am final year mechanical student.Actually for final year project I am going to make a reverse trike which can be lean at corners and curves using either moped like kinetic or bike which has advantage of gearing.But my main areas of concern is stub axle and king pin assembly as i want to fit double wishbone type suspension which is also known as A-arm.So I want to know whether i can use M800 parts which includes stub and kingpin assembly.I know than its a question which is bit related to cars.Also I can directly use ATV parts but they are not readily available.I am posting pics for your referance below.

    This is reverse trike i.e two wheel at front and one at rear


    principle of operation


    leanable trike:This trike scooter/moped seems to be a standard moped with the front wheel removed and replaced with the front wheels of an ATV/quad.The picture seem to indicate its an independent lean steer design, so when the driver exerts lean, the front tires lean in unison with the rear tire.


    Where I stuck is this:


    So,please help me doing this.There are couple of ideas out there in my mind to use vespa/scooter front wheel set which have suspension set like cantilever on only one side and modify it.Pic below

    Please guide me...Reply soon I will post further pics once project start.

  • #2
    Re: Queries about building reverse trike like T-rex

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    • #3
      Re: Queries about building reverse trike like T-rex

      Like this?
      Skill is what keeps you on a Motorcycle
      Awareness + Skill is what keeps you out of harm's way
      ATGATT + Awareness + Skill means you might Live To Ride another day

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      • #4
        Re: Queries about building reverse trike like T-rex

        Originally posted by mechalsar View Post
        Hello all,
        I am final year mechanical student.Actually for final year project I am going to make a reverse trike which can be lean at corners and curves using either moped like kinetic or bike which has advantage of gearing.
        Although I had an experience of making an ATV in my final years of mechanical engineering Trike was never on the discussion table then. Anyways I feel you should first take a look at the Piaggio MP3 250 and should pick that as an inspiration. Here's one video Piaggio MP3 - Crazy front two wheels design! - YouTube

        As a matter of fact using a M800 part will probably result in a larger turning radius. I suggest you should design it as a motorcycle and not like a car/ATV. Come back again to the thread after you have enough research about the Piaggio MP3 250 and its front end.

        Warm Regards,
        Pranav


        Use riding gears because Safety doesn't happen by Accident

        Spot me covered in:
        Vega Shadow - SPG Icarus - SPG Ares - SPG Perseus

        Honda CBF Stunner - Oct'11 to till date | Barky's Baby: Honda CBF 125 Modification

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        • #5
          Re: Queries about building reverse trike like T-rex

          Thanks xpranav.agree with you that i cant use M800 stub axle as it doesnt rotate upto required angle.Today i visited scrap dealers around Nasik.One of dealer told me that he will arrange pairs of vespa's front assembly and came on final decision to use single side suspension along with shaft and then weld clamps to it to attach A-arms.
          Click image for larger version

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          The piaggio mp3 250 that u shown have studied by me long before but cancelled that idea due to higher centre of gravity.I want lower so select this plan.here is shematic of mechanism on which piaggio mp3 250 works
          Click image for larger version

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          My plan:
          Click image for larger version

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          • #6
            Re: Queries about building reverse trike like T-rex

            Roger that @mechalsar, keep us posted as you progress ahead ................ every opportunity offers a learning no matter how old you turn into

            Warm Regards,
            Pranav


            Use riding gears because Safety doesn't happen by Accident

            Spot me covered in:
            Vega Shadow - SPG Icarus - SPG Ares - SPG Perseus

            Honda CBF Stunner - Oct'11 to till date | Barky's Baby: Honda CBF 125 Modification

            Comment

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