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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Modified Steering Stem
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<blockquote data-quote="timetraveller" data-source="post: 153950" data-attributes="member: 456"><p>Oh no Bill, no Bill no Bill. The point of the new geometry is that the front of the lower link is NOT below the horizontal. If you think about it and the front of the fork is below the horizontal then then the wheel moves upwards the front of the lower link will move upwards and forwards about the rear of the spindle. That in turn means that the wheel has to move forwards as it goes upwards and if one is braking then it does not want to do that. That is why the suspension locks up when braking. We have all been doing what you suggest for decades and it took John Emmanuel over here and David Dunfey in the USA to realise what was going wrong. The sad thing is that if one looks at photographs of the works racers from the early fifties they must have known about this as all their bikes had horizontal lower links, presumably shorter or weaker springs. The story is that George Brown also realised this which is why he built Nero with telescopic forks.</p></blockquote><p></p>
[QUOTE="timetraveller, post: 153950, member: 456"] Oh no Bill, no Bill no Bill. The point of the new geometry is that the front of the lower link is NOT below the horizontal. If you think about it and the front of the fork is below the horizontal then then the wheel moves upwards the front of the lower link will move upwards and forwards about the rear of the spindle. That in turn means that the wheel has to move forwards as it goes upwards and if one is braking then it does not want to do that. That is why the suspension locks up when braking. We have all been doing what you suggest for decades and it took John Emmanuel over here and David Dunfey in the USA to realise what was going wrong. The sad thing is that if one looks at photographs of the works racers from the early fifties they must have known about this as all their bikes had horizontal lower links, presumably shorter or weaker springs. The story is that George Brown also realised this which is why he built Nero with telescopic forks. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Modified Steering Stem
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