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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Koni damper modification
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<blockquote data-quote="greg brillus" data-source="post: 144266" data-attributes="member: 597"><p>To answer Bruce's question , yes they are the ones........I'm guessing that price is for 2 of, they are much better than the earlier ones whereby the upper attachment had a vertical blade of steel that was welded on and not very nice, not to mention crooked. They are not adjustable like the original Koni's, though even on the weakest setting they are too stiff........perhaps Vic's findings of the primitive punched out seal is partially to blame. You need to remember that most folk who ride the "B"s with Brampton's say how nice they ride, and I would agree, save the limited travel which readily shows itself on rough roads........However, the forks do move smoothly and as we know the damping is very basic........ So with that in mind, the later forks are not that different. Their relative unsprung weight is not much if at all different....... There are many things about these forks that do not at first come to mind........The pivot point for the lower attachment does not move at the same rate as the fork blades themselves, it is all ratio's.......even the spring boxes pivot at a ratio of the fork travel. All of this tends to get overlooked when we look at the behavior and travel of these forks........That's why I feel having a damper that is too stiff has a big effect on the action........My ideal shocker is one that has very little compression damping and not much more on the rebound.</p></blockquote><p></p>
[QUOTE="greg brillus, post: 144266, member: 597"] To answer Bruce's question , yes they are the ones........I'm guessing that price is for 2 of, they are much better than the earlier ones whereby the upper attachment had a vertical blade of steel that was welded on and not very nice, not to mention crooked. They are not adjustable like the original Koni's, though even on the weakest setting they are too stiff........perhaps Vic's findings of the primitive punched out seal is partially to blame. You need to remember that most folk who ride the "B"s with Brampton's say how nice they ride, and I would agree, save the limited travel which readily shows itself on rough roads........However, the forks do move smoothly and as we know the damping is very basic........ So with that in mind, the later forks are not that different. Their relative unsprung weight is not much if at all different....... There are many things about these forks that do not at first come to mind........The pivot point for the lower attachment does not move at the same rate as the fork blades themselves, it is all ratio's.......even the spring boxes pivot at a ratio of the fork travel. All of this tends to get overlooked when we look at the behavior and travel of these forks........That's why I feel having a damper that is too stiff has a big effect on the action........My ideal shocker is one that has very little compression damping and not much more on the rebound. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Koni damper modification
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