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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Hydraulic Steering Damper
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<blockquote data-quote="oexing" data-source="post: 99433" data-attributes="member: 1493"><p>Now here is my idea of damper concept - worked on the bench, temporary setup without head lug bearings in there. So don´t be too eagle eyed in the Youtube video clip that I uploaded to give an idea of the motions. I did run into space problems with my first thinkings but finally changed places with damper rod and cylinder and liked the features as shown. No big problem to have even more clearances to girder parts or head lug casting but it should do like that. I´ll do more photos in daytime later. When a crash bar is fitted that could be used to clamp a bracket to it to provide the anchor bolt for the damper rod in the same relative position like in my alu bar that is fixed in the sidecar lug. </p><p> I think this configuration should provide more stroke around the neutral fork position and that is most important I believe. Judging from your pictures with the long alu lever more or less parallel to the damper cylinder I suspect the damper does not do much around the middle position but a lot more with more deflection on the handlebar - not sooo great if my thinking is correct ??</p><p> The mounting plate for the cylinder is a 4mm alu simply clamped tightly with the original steering damper knob, even friction discs may stay there. An alu dowel could be handy for keeping the position of the alu lever fixed on the Brampton bottom disc, but having no big torque to deal with. Distance between centres on the alu lever is 57mm presently, still safety space left on the damper rod both ends. Try to get the cylinder and rod roughly parallel to the girder fork bolts when full left lock is set, so in right lock this does not change much and middle position looks allright too, not so much swivelling of damper as in known designs above. </p><p> Hope you like it and prepared for discussing this. </p><p></p><p> Vic</p><p></p><p>Youtube link:</p><p><a href="https://www.youtube.com/watch?v=rXKZqqbWUtI" target="_blank">damper concept Brampton</a></p><p></p><p></p><p>[ATTACH=full]23710[/ATTACH]</p><p></p><p>[ATTACH=full]23711[/ATTACH]</p><p></p><p>[ATTACH=full]23712[/ATTACH]</p><p></p><p>[ATTACH=full]23713[/ATTACH]</p><p></p><p>[ATTACH=full]23714[/ATTACH]</p><p></p><p>[ATTACH=full]23715[/ATTACH]</p></blockquote><p></p>
[QUOTE="oexing, post: 99433, member: 1493"] Now here is my idea of damper concept - worked on the bench, temporary setup without head lug bearings in there. So don´t be too eagle eyed in the Youtube video clip that I uploaded to give an idea of the motions. I did run into space problems with my first thinkings but finally changed places with damper rod and cylinder and liked the features as shown. No big problem to have even more clearances to girder parts or head lug casting but it should do like that. I´ll do more photos in daytime later. When a crash bar is fitted that could be used to clamp a bracket to it to provide the anchor bolt for the damper rod in the same relative position like in my alu bar that is fixed in the sidecar lug. I think this configuration should provide more stroke around the neutral fork position and that is most important I believe. Judging from your pictures with the long alu lever more or less parallel to the damper cylinder I suspect the damper does not do much around the middle position but a lot more with more deflection on the handlebar - not sooo great if my thinking is correct ?? The mounting plate for the cylinder is a 4mm alu simply clamped tightly with the original steering damper knob, even friction discs may stay there. An alu dowel could be handy for keeping the position of the alu lever fixed on the Brampton bottom disc, but having no big torque to deal with. Distance between centres on the alu lever is 57mm presently, still safety space left on the damper rod both ends. Try to get the cylinder and rod roughly parallel to the girder fork bolts when full left lock is set, so in right lock this does not change much and middle position looks allright too, not so much swivelling of damper as in known designs above. Hope you like it and prepared for discussing this. Vic Youtube link: [URL='https://www.youtube.com/watch?v=rXKZqqbWUtI']damper concept Brampton[/URL] [ATTACH=full]23710[/ATTACH] [ATTACH=full]23711[/ATTACH] [ATTACH=full]23712[/ATTACH] [ATTACH=full]23713[/ATTACH] [ATTACH=full]23714[/ATTACH] [ATTACH=full]23715[/ATTACH] [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Hydraulic Steering Damper
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