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Thread: Sidecar Racing

  1. #8161
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    Quote Originally Posted by Grumph View Post
    I don't - unless you have the budget to replace several times a season. If you're using them as a rotating bearing, they wear quick.
    Remember the Britten front end ? Patter problems cos the rod ends wore bloody quick, and any wear there meant patter.

    There's a car suspension trick of using the spherical bearing piece in a tube with wedge rings welded either side. Used for wishbone pivot shaft bearings on race stuff with a short life span. Useful if the chassis flexes as it'll self align.



    The main reason behind the Britten front end patter, was due to the carbon girders being to rigid, but YES, the rod ends did take a hell of a hammering, and needed changing often.
    shaun@motodynamix.co.nz


    I love my job Call 0223210319--AKA Shaun

  2. #8162
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    Quote Originally Posted by Shaun Harris View Post
    The main reason behind the Britten front end patter, was due to the carbon girders being to rigid, but YES, the rod ends did take a hell of a hammering, and needed changing often.
    I thought that would provoke a reply from you...Interesting answer. Is that the accepted reason now as last time i talked to anyone they still reckoned it was the rod ends...Never got an answer to the question of exactly when - at what point in the turn - it started to patter, either.

  3. #8163
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    Quote Originally Posted by Grumph View Post
    I thought that would provoke a reply from you...Interesting answer. Is that the accepted reason now as last time i talked to anyone they still reckoned it was the rod ends...Never got an answer to the question of exactly when - at what point in the turn - it started to patter, either.


    I am not 100% on the general opinion to be honest, but after my year on it, and testing many many different styles of build of them, the patter only ever got worse from the original designed one's. A big problem with the Britten program was, not enough notes were recorded from the many different riders to come to any real conclusions. As you would understand, there are theories, and then there is on track reality, which comes down to rider feel and the stop watch I guess. Patter with the original ones, would normally begin between tip in, and full lean, but then using the 2 different styles that I tested for them, it would cause head shakes and patter in a straight line even, to the point of being near on lethal, especially at the TT with the hammering a bike takes there. It was like a small rubber bush inside another rubber to try and absorb the shock, but this design only exaggerated the problem with the patter. All the boys involved in it were good, but I personally would listen to GUY re the Britten, over any one else involved with it.
    shaun@motodynamix.co.nz


    I love my job Call 0223210319--AKA Shaun

  4. #8164
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    Quote Originally Posted by Drew View Post
    hahahahahahahahahahahahahahahahahahahahahahahahaha hahahahahahahahahaha, you think it's in the shed!
    Dude you need to show it the love.

    Quote Originally Posted by Kickaha View Post
    ....I have a 12 pack of Ken someone gave me I will bring it up.....
    see, I cant understand why everybody else thinks your a cunt.

    Quote Originally Posted by Drew View Post
    205 clear between the axle spacer mating surfaces.
    chur.

    Quote Originally Posted by Kickaha View Post
    They use rod ends in the top
    where?

  5. #8165
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    Quote Originally Posted by nodrog View Post
    where?
    I'm talking about the front of the long bikes with parallelogram front end, bushes in the bottom pivot and rod ends at the top which give you caster adjustment
    "If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."


    Quote Originally Posted by scracha View Post
    Even BP would shy away from cleaning up a sidecar oil spill.
    Quote Originally Posted by Warren Zevon
    Send Lawyers, guns and money, the shit has hit the fan

  6. #8166
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    I thought they had four rod ends. So you could adjust the offset too. Guess I remembered wrong.

  7. #8167
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    Quote Originally Posted by nodrog View Post
    Dude you need to show it the love.
    I haven't done skids on it, that's fucken love?

  8. #8168
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    Quote Originally Posted by Drew View Post
    I haven't done skids on it, that's fucken love?
    cool, I'd like to at least see it before its broken

  9. #8169
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    Quote Originally Posted by nodrog View Post
    cool, I'd like to at least see it before its broken
    I can't promise I won't break it, I just won't be riding it.

  10. #8170
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    This is the LCR fuel tank from the two stroke era, should be good for forty laps, lets do some endurance racing

    Click image for larger version. 

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    I think when Dave priced up going to a smaller 20L tank it was about $2500
    "If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."


    Quote Originally Posted by scracha View Post
    Even BP would shy away from cleaning up a sidecar oil spill.
    Quote Originally Posted by Warren Zevon
    Send Lawyers, guns and money, the shit has hit the fan

  11. #8171
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    Quote Originally Posted by Kickaha View Post
    This is the LCR fuel tank from the two stroke era, should be good for forty laps, lets do some endurance racing

    Click image for larger version. 

Name:	DSCF2026.jpg 
Views:	36 
Size:	762.6 KB 
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    are you giving away those gold rims?

  12. #8172
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    I'm keen. We've got space to make our tank hold another five or ten litres.

  13. #8173
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    Quote Originally Posted by nodrog View Post
    are you giving away those gold rims?
    A guy down here brought in two sets, I've got the other set...They're motard wheels - dirt bike hubs which are quite wide and awkward.
    No cush on the rear, chain line very wide, lateral thinking and some machining required to get it in far enough for a "normal" chain line.
    Front has a big PCD for the single disc too, very limiting...
    But, they are RS125 widths....

    tank size....check out replacement cell liners for the speedway cars. Should be something smaller at a lower price surely.

  14. #8174
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    Quote Originally Posted by nodrog View Post
    are you giving away those gold rims?
    Yes, giving them away for $400 2.5 x 17 front and 3.5 x 17 rear, wire wheels
    "If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."


    Quote Originally Posted by scracha View Post
    Even BP would shy away from cleaning up a sidecar oil spill.
    Quote Originally Posted by Warren Zevon
    Send Lawyers, guns and money, the shit has hit the fan

  15. #8175
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    Quote Originally Posted by Grumph View Post
    A guy down here brought in two sets, I've got the other set...They're motard wheels - dirt bike hubs which are quite wide and awkward.
    No cush on the rear, chain line very wide, lateral thinking and some machining required to get it in far enough for a "normal" chain line.
    Front has a big PCD for the single disc too, very limiting...
    But, they are RS125 widths....

    tank size....check out replacement cell liners for the speedway cars. Should be something smaller at a lower price surely.
    I've found a zxr400 wheel with sprocket and disk that may work.

    Quote Originally Posted by Kickaha View Post
    Yes, giving them away for $400 2.5 x 17 front and 3.5 x 17 rear, wire wheels
    thats pretty cheap.

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