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Thread: Building a sidecar subframe appears difficult

  1. #1
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    14th January 2013 - 18:39
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    Building a sidecar subframe appears difficult

    Ive been to most of the engineers around town that I thought may have the knowledge/experience to build the subframe and attachment fittings needed to add a hack onto my W650 without much luck so far.

    Just finished having a chat to Roger Stent, long time member of the racing fraternity, what an amazing and genuine enthusiastic Bike/sidecar man he is, Not often you get to meet such a helpful and knowledgeable guy.

    He has got me started on collecting various bits and pieces that are required for this project, im hoping I have stirred an interest that will have him, (some how) finding some spare time in his already very busy schedule, fingers crossed.

    ps, anyone got for sale a 16" laced wheel that can be braked for the sidecar wheel?

  2. #2
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    4th November 2007 - 13:39
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    Quote Originally Posted by old slider View Post
    Ive been to most of the engineers around town that I thought may have the knowledge/experience to build the subframe and attachment fittings needed to add a hack onto my W650 without much luck so far.

    Just finished having a chat to Roger Stent, long time member of the racing fraternity, what an amazing and genuine enthusiastic Bike/sidecar man he is, Not often you get to meet such a helpful and knowledgeable guy.

    He has got me started on collecting various bits and pieces that are required for this project, im hoping I have stirred an interest that will have him, (some how) finding some spare time in his already very busy schedule, fingers crossed.

    ps, anyone got for sale a 16" laced wheel that can be braked for the sidecar wheel?
    does it have to be braced??
    quite a few hondas including mine have a 16" front with twin disks

    plastic fabricator/welder here if you need a hand ! will work for beer/bourbon/booze

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  3. #3
    Quote Originally Posted by old slider View Post
    Ive been to most of the engineers around town that I thought may have the knowledge/experience to build the subframe and attachment fittings needed to add a hack onto my W650 without much luck so far.
    In this wonderful modern society, they don't want to stick their neck out on something that could remotely become a problem. ''It was nothing to do with me, it was him, that guy over there, he built it, so it's his fault.''
    In and out of jobs, running free
    Waging war with society

  4. #4
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    21st May 2010 - 09:18
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    Does it have to have a side car?
    It's a pretty sweet looking bike as is!

    Oh and nice to see you here on KB

  5. #5
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    14th January 2013 - 18:39
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    Quote Originally Posted by hayd3n View Post
    does it have to be braced??
    quite a few hondas including mine have a 16" front with twin disks
    I will find out. I imagine it will need to be fitted with HD spokes? not sure about that either. Saying that my speedway sidewheel stood up to a fair bit of stress, and that from memory (1980) wasnt anything special.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  6. #6
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    14th January 2013 - 18:39
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    Quote Originally Posted by old slider View Post
    I will find out. I imagine it will need to be fitted with HD spokes? not sure about that either. Saying that my speedway sidewheel stood up to a fair bit of stress, and that from memory (1980) wasnt anything special.

    sorry I struggle with this technology.
    Click image for larger version. 

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  7. #7
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    1st May 2011 - 12:35
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    Really not hard.. heres 2 I built.
    XT660r one had to be alot more ridged as the
    bike has no bottom cradle..
    Both are for leaners...



    XR250 subframe



    XT660R subframe...


    Pete

    90% of all Harleys built are still on the road... The other 10% made it back home...
    Ducati... Makeing riders into mechaincs since 1964...

  8. #8
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    14th January 2013 - 18:39
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    Quote Originally Posted by pete-blen View Post
    Really not hard.. heres 2 I built.
    XT660r one had to be alot more ridged as the
    bike has no bottom cradle..
    Both are for leaners...



    XR250 subframe



    XT660R subframe...



    wonderful job pete, I have just the sidecar fibreglass body and need the actual chair subframe built with swinging arm, suspension, wheel, brake etc, also 4 adjustable attachments (TOE-IN, LEAN ETC) from chair subframe onto the bike also need to work out wheel lead etc, I think the W650 bike frame is strong enough for the chair to be attached directly.

  9. #9
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    1st May 2011 - 12:35
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    Quote Originally Posted by old slider View Post
    wonderful job pete, I have just the sidecar fibreglass body and need the actual chair subframe built with swinging arm, suspension, wheel, brake etc, also 4 adjustable attachments (TOE-IN, LEAN ETC) from chair subframe onto the bike also need to work out wheel lead etc, I think the W650 bike frame is strong enough for the chair to be attached directly.
    Its also a good idea to make the lead of the car wheel adjustable...
    the lead should be no more than 15% of the bikes wheel base...
    I found I need a lot less than 15% to get it to turn...
    the more foward the car wheel is the wider the car wheel scrub
    channel becomes... "scrub channel = How far the car wheel gets
    pushed side ways when turning... zero scrub is when the bike & car wheel
    is in line...but then its possable for a tip foward under hard brakeing..
    So yer have to play one against the other come up with a happy medium..
    for a ridged unit a leading link front end may be required to lighten the
    steering...gives zero trail on the front end... When you turn a bike steering
    the wheel travels foward in a arc.. but a leading link with zero trail the wheel
    rotates on the spot... steering head line and wheel ground contact patch
    are the same place...
    Then a steering damper will be required as there is no self centering efect with
    a leading link .. to stop head shake...
    Pete

    90% of all Harleys built are still on the road... The other 10% made it back home...
    Ducati... Makeing riders into mechaincs since 1964...

  10. #10
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    5th January 2007 - 14:58
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    Quote Originally Posted by old slider View Post
    Ive been to most of the engineers around town that I thought may have the knowledge/experience to build the subframe and attachment fittings needed to add a hack onto my W650 without much luck so far.

    Just finished having a chat to Roger Stent, long time member of the racing fraternity, what an amazing and genuine enthusiastic Bike/sidecar man he is, Not often you get to meet such a helpful and knowledgeable guy.

    He has got me started on collecting various bits and pieces that are required for this project, im hoping I have stirred an interest that will have him, (some how) finding some spare time in his already very busy schedule, fingers crossed.

    ps, anyone got for sale a 16" laced wheel that can be braked for the sidecar wheel?
    Roger Stent is my father in law. He is everything you say & he has an absolutely fantastic daughter. . . . . . .and wife.
    Ask about the race boats & drag car & make time for a cup of tea & a look at some old photos.

  11. #11
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    15th February 2005 - 15:34
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    Quote Originally Posted by sidecar bob View Post
    Roger Stent is my father in law. He is everything you say & he has an absolutely fantastic daughter. . . . . . .and wife.
    Are you looking to score tonight?

  12. #12
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    Quote Originally Posted by Katman View Post
    Are you looking to score tonight?
    Na, its all true!! I have a chur as missus.

  13. #13
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    Feel the love!

  14. #14
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    18th February 2007 - 03:45
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    Quote Originally Posted by sidecar bob View Post
    Na, its all true!! I have a chur as missus.
    y are you on bobs log in tracy

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