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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Spring Claws SP1/1
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<blockquote data-quote="Peter Holmes" data-source="post: 21636" data-attributes="member: 302"><p>Well I think Marcus does visit this site but I think I will be safe in attempting to give at least a brief description, this is from memory as I last saw Marcus about a year ago and we discussed this modification. The top claw is bored out and threaded with a larger diameter fine thread, maybe the bottom one also, not sure , then you make a largish bar with a thread at the top to match the new top claw thread and either thread the top to take the eyebolt or manufacture as one piece, drill a hole up the other end of the rod to receive the bottom rod made to a clearance diameter and then the two rods slide one inside the other telescope fashion down the centre of the spring, also you can play around with preload and ride height in situ. The only problem that I can see is that of wear where one rod constantly moves piston fashion inside the larger diameter bored rod, I remember seeing a prototype where the female top rod had ovalled a little, I would guess it would need constant lubrication. In any event it looks great and it seems to work really well. might be worth sending a PM to Marcus for more info, I might have it all wrong</p></blockquote><p></p>
[QUOTE="Peter Holmes, post: 21636, member: 302"] Well I think Marcus does visit this site but I think I will be safe in attempting to give at least a brief description, this is from memory as I last saw Marcus about a year ago and we discussed this modification. The top claw is bored out and threaded with a larger diameter fine thread, maybe the bottom one also, not sure , then you make a largish bar with a thread at the top to match the new top claw thread and either thread the top to take the eyebolt or manufacture as one piece, drill a hole up the other end of the rod to receive the bottom rod made to a clearance diameter and then the two rods slide one inside the other telescope fashion down the centre of the spring, also you can play around with preload and ride height in situ. The only problem that I can see is that of wear where one rod constantly moves piston fashion inside the larger diameter bored rod, I remember seeing a prototype where the female top rod had ovalled a little, I would guess it would need constant lubrication. In any event it looks great and it seems to work really well. might be worth sending a PM to Marcus for more info, I might have it all wrong [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Spring Claws SP1/1
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