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<blockquote data-quote="Little Honda" data-source="post: 105743" data-attributes="member: 667"><p>Very nice pictures, indeed! What we can all see, is, that the Norvin´s centre of gravity is more similar to the</p><p>actual historic development, visible in this hot Ducati. It seems to be more important for the rideability of</p><p>a bike, to concentrate masses as tight in the centre, as possible, not, as low as possible. (1)</p><p>But with reference to the Norvin, shown above, I see a very long kickstart lever, made from a HONDA CB750.</p><p>When I built mine, I had a kickstartshaft with Hondasplines welded together and had a lever, as long, as on</p><p>the pic above. Result: I broke the shaft! (somewhere, I still have pics of it) If you look on my Norvin, you can</p><p>see a lever, app. 2in shorter than above, which is sufficient, as I disliked to touch the kickstart peg</p><p>with my right knee when riding with such a long lever. Furthermore, you do not need this multi-joint gear</p><p>linkage, as shown in the pic above. Just look at my Norvin. It has the normal Vincent gear lever, shortened</p><p>by 1 1/2", due to normal feet. I also have a standard straight Vincent handlebar fitted, no clip-ons.</p><p>If you cannot ride a Ducati anymore, without feeling uncomfortable after 30minutes, you should be honest</p><p>to yourself and ride a bike which suits your usage profile. </p><p>(1) remember physics lessons: holding a rotating bicycle wheel in your hands and try to move sideways:</p><p> as masses are far from centre of wheel, it is very difficult to turn. Same with centre of gravity and</p><p> engine, low or high, no difference.</p></blockquote><p></p>
[QUOTE="Little Honda, post: 105743, member: 667"] Very nice pictures, indeed! What we can all see, is, that the Norvin´s centre of gravity is more similar to the actual historic development, visible in this hot Ducati. It seems to be more important for the rideability of a bike, to concentrate masses as tight in the centre, as possible, not, as low as possible. (1) But with reference to the Norvin, shown above, I see a very long kickstart lever, made from a HONDA CB750. When I built mine, I had a kickstartshaft with Hondasplines welded together and had a lever, as long, as on the pic above. Result: I broke the shaft! (somewhere, I still have pics of it) If you look on my Norvin, you can see a lever, app. 2in shorter than above, which is sufficient, as I disliked to touch the kickstart peg with my right knee when riding with such a long lever. Furthermore, you do not need this multi-joint gear linkage, as shown in the pic above. Just look at my Norvin. It has the normal Vincent gear lever, shortened by 1 1/2", due to normal feet. I also have a standard straight Vincent handlebar fitted, no clip-ons. If you cannot ride a Ducati anymore, without feeling uncomfortable after 30minutes, you should be honest to yourself and ride a bike which suits your usage profile. (1) remember physics lessons: holding a rotating bicycle wheel in your hands and try to move sideways: as masses are far from centre of wheel, it is very difficult to turn. Same with centre of gravity and engine, low or high, no difference. [/QUOTE]
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