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Thread: Race chassis

  1. #421
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    Eccentric chain adjusters?
    Don't you look at my accountant.
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  2. #422
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    Nice RSW125 pic low init.
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    Kinky is using a feather. Perverted is using the whole chicken

  3. #423
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    Quote Originally Posted by husaberg View Post
    the word is butch. re the steering head.
    Which came first, the Butch or the Buell?
    Go soothingly on the grease mud, as there lurks the skid demon

  4. #424
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    Quote Originally Posted by F5 Dave View Post
    Eccentric chain adjusters?
    If you put an eccentric inside an eccentric you can put the axle wherever you want.

    Or you could just arsehole the chain altogether.
    Go soothingly on the grease mud, as there lurks the skid demon

  5. #425
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    How big do you have to make it? & clamp it. But my point was more it doesn't seem authentic as a replica, unless I'm wrong.
    Don't you look at my accountant.
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  6. #426
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    Quote Originally Posted by Ocean1 View Post
    Which came first, the Butch or the Buell?
    if you are meaning the Rotax double uglyBuell (you have one i guess) the Aprilia chassis have been like that since about 92. Carpental Alloy (aircraft Froggy i think)



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  7. #427
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    Quote Originally Posted by F5 Dave View Post
    How big do you have to make it? & clamp it. But my point was more it doesn't seem authentic as a replica, unless I'm wrong.
    Don't have to be that big, but big is good up to a point, there's less load at a greater radius from the axle centreline. What's it a replica of? Go back far enough and a flat belt would be right.
    Go soothingly on the grease mud, as there lurks the skid demon

  8. #428
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    Quote Originally Posted by husaberg View Post
    if you are meaning the Rotax double uglyBuell (you have one i guess) the Aprilia chassis have been like that since about 92. Carpental Alloy (aircraft Froggy i think)
    No, sold the 1125. Which I might say was an excellent machine, (stunning engine) and from a purely engineering perspective they're as pretty as their performance makes 'em.

    All of the XB Buells had similar frames, the headstock rigidity is one of the first things you notice. I think the general concept is good for most engines, especially for track use, although some may be better with full or partial spaceframes.
    Go soothingly on the grease mud, as there lurks the skid demon

  9. #429
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    Quote Originally Posted by Ocean1 View Post
    No, sold the 1125. Which I might say was an excellent machine, (stunning engine) and from a purely engineering perspective they're as pretty as their performance makes 'em.

    All of the XB Buells had similar frames, the headstock rigidity is one of the first things you notice. I think the general concept is good for most engines, especially for track use, although some may be better with full or partial spaceframes.
    I was half kidding i must say they do look better in the flesh than in the pictures.
    Dave the front brake is wrong to.
    the Rickmam frame i have has an eccentric swingarm pivot it works like the snail cams on a 80's XR honda.
    I like them.



    Kinky is using a feather. Perverted is using the whole chicken

  10. #430
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    Quote Originally Posted by husaberg View Post
    I was half kidding i must say they do look better in the flash than in the pictures.
    Dave the front brake is wrong to.
    the Rickmam frame i have has an eccentric swingarm pivot it works like the snail cams on a 80's XR honda.
    I like them.
    Chain tensioning via an adjustable pivot is good if done right - and by that i mean the pivot point must move in a straight line. I dont like the type which rotates the pivot as it varies the pivot height too. No point in going to a lot of trouble sorting out height then moving it round regardless...

    AFAIK the first was done by Colin Lyster then the Rickmans picked it up followed by Ducati et al. Colin's version was as usual for him very simple, not to say a tad agricultural...square plates with an offset hole.

  11. #431
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    Quote Originally Posted by Grumph View Post
    Chain tensioning via an adjustable pivot is good if done right - and by that i mean the pivot point must move in a straight line. I dont like the type which rotates the pivot as it varies the pivot height too. No point in going to a lot of trouble sorting out height then moving it round regardless...

    AFAIK the first was done by Colin Lyster then the Rickmans picked it up followed by Ducati et al. Colin's version was as usual for him very simple, not to say a tad agricultural...square plates with an offset hole.
    Looks like Rickman used a couple of methods (just noticed someone has made the Zundapp reed)
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    Last edited by husaberg; 6th November 2013 at 06:50. Reason: asses the last one for you Greg



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  12. #432
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    kreidler

    This one looks very Waddon esque
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  13. #433
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    Hey, its got Tuff TM wheels like my mates Panther BMX!

    (After I broke the originals for him doing a jump that was never going to work).
    Don't you look at my accountant.
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  14. #434
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    Spline come space, Egli or Egli inspired. The pic code says Egli



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  15. #435
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    Mm, forks are Egli - but messy, very messy...why have the spine at all, it's not adding a lot to the frame layout...

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