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  1. #1
    PRAY BEFORE RIDING roadcrave's Avatar
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    wedge designer

    where did this engine get designed and developed, anyone know????

  2. #2
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    Germany?

  3. #3
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    China?

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    What, me worry? GILLY's Avatar
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    Fat Baldistan?
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  5. #5
    Daily Rider jurgen's Avatar
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    I still don't get it:
    A transverse crankshaft requires TWO sets of bevel gears from the engine to the real wheel. In engineering design class I learned that a set of bevel gears costs about 5% of power. So, we're losing 10% between the gearbox output and the rear wheel.
    With the boxer and brick designs it makes sense - a longitudinal crankshaft lends itself to a driveshaft design.
    But, why hold on to the driveshaft when it turns into an engineering fauxpas?
    Why does BMW not simply put a belt on the wedge? A belt costs about 3% in transmission power. And guaranteed 20 pounds less weight. Plus, it would also solve the final drive problems
    Or a chain??? No, that would be too Japanese
    Something to get the crowds fired up...

    So, here's my offer to BMW: If you put a belt on the wedge, I'll buy it. Till then, I'll ride my brick.
    J?rgen
    Red Rocks
    04 R1150GS adv
    04 K1200RS last of the great bricks

  6. #6
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    The wedge inline four is basically the type of engine called the UJM (Universal Japanese motor). The first engine of this type in a motorcycle is the 1969 Honda CB750. The K brick engine is a UJM mounted on it's side longitudinally.

    Ralph Sims

  7. #7
    K Bikes Complex by Choice cjack's Avatar
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    Quote Originally Posted by jurgen View Post
    I still don't get it:
    A transverse crankshaft requires TWO sets of bevel gears from the engine to the real wheel. In engineering design class I learned that a set of bevel gears costs about 5% of power. So, we're losing 10% between the gearbox output and the rear wheel.
    With the boxer and brick designs it makes sense - a longitudinal crankshaft lends itself to a driveshaft design.
    But, why hold on to the driveshaft when it turns into an engineering fauxpas?
    Why does BMW not simply put a belt on the wedge? A belt costs about 3% in transmission power. And guaranteed 20 pounds less weight. Plus, it would also solve the final drive problems
    Or a chain??? No, that would be too Japanese
    Something to get the crowds fired up...

    So, here's my offer to BMW: If you put a belt on the wedge, I'll buy it. Till then, I'll ride my brick.
    Oh heck...I could be going 192.22 mph instead of 173. Bummer.
    My other bike is a BMW.
    Jack Hawley MOA and RA #224, KE9UW ("Chuck")

  8. #8
    Registered User rmarkr's Avatar
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    Quote Originally Posted by jurgen View Post
    So, here's my offer to BMW: If you put a belt on the wedge, I'll buy it. Till then, I'll ride my brick.
    Seen the latest hot BMW - with a revolutionary drive system ... err ... a chain.
    S_pic_3-392x256.jpg
    Mark

    "Of all the things I've lost, I miss my mind the most" Mark Twain

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