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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Godet Modified Steering Stem
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<blockquote data-quote="davidd" data-source="post: 104918" data-attributes="member: 1177"><p>The difference is not visible at those angles. The geometry changes quite a bit as the spindle is lowered from the bearing platform. If I had a side shot of Godet's stem it would show the bearing platform closer to the spindle hole like this:</p><p>[ATTACH=full]26120[/ATTACH]</p><p>The DD stem on the left and the JE stem on the right. If the spindles are lined up and you look up at the bearing platform there is a obvious difference in this distance. The greater the distance between the spindle and the bearing platform the more teloscopic the axle path becomes. The shorter that distance the path becomes more like the Brampton. </p><p></p><p>Anyway, I agree with Norman that you cannot tell the difference from a glance. This makes it more difficult to identify how the Girdraulic will perform, short of riding it.</p><p></p><p>Here is another one of my stems made by Jim Young for his sidecar rig:</p><p>[ATTACH=full]26122[/ATTACH]</p><p></p><p>[ATTACH=full]26123[/ATTACH]</p><p>Jim apparently wanted to use the two spools on the front for something.</p><p></p><p>There is nothing commercially protected here. I think many Vincent owners have the drawing I made. I think it is a nice stem, I am glad that Patrick loved it and Cam Donald loved it, but I am not in the retail business. Although they act differently, both stems cure the braking issue that plagues the Girdraulic.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 104918, member: 1177"] The difference is not visible at those angles. The geometry changes quite a bit as the spindle is lowered from the bearing platform. If I had a side shot of Godet's stem it would show the bearing platform closer to the spindle hole like this: [ATTACH type="full" alt="26120"]26120[/ATTACH] The DD stem on the left and the JE stem on the right. If the spindles are lined up and you look up at the bearing platform there is a obvious difference in this distance. The greater the distance between the spindle and the bearing platform the more teloscopic the axle path becomes. The shorter that distance the path becomes more like the Brampton. Anyway, I agree with Norman that you cannot tell the difference from a glance. This makes it more difficult to identify how the Girdraulic will perform, short of riding it. Here is another one of my stems made by Jim Young for his sidecar rig: [ATTACH type="full" alt="26122"]26122[/ATTACH] [ATTACH type="full" alt="26123"]26123[/ATTACH] Jim apparently wanted to use the two spools on the front for something. There is nothing commercially protected here. I think many Vincent owners have the drawing I made. I think it is a nice stem, I am glad that Patrick loved it and Cam Donald loved it, but I am not in the retail business. Although they act differently, both stems cure the braking issue that plagues the Girdraulic. David [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Godet Modified Steering Stem
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