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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Modified Steering Stem
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<blockquote data-quote="Chris Launders" data-source="post: 77920" data-attributes="member: 2010"><p>I can only tell you the ratings etc for the standard springs I measured and what I have fitted.</p><p>Standard C springs were 15" long 56lb/in with inner springs (on twins only) 15" long 10lb/in</p><p>D springs were the 16.5" long but the same 56lb/in rating.</p><p>These are all around 14.5" fitted.</p><p>I am at present using two 16.5" 36lb/in springs with the modified steering stem which means they are 13.5" long fitted (around 1" less than standard)</p><p>At this the suspension sits down 1/4" on it's wheels and a further 1/4" with me on board, I tried one 30lb/in spring and one 36lb/in spring and they increased to 1/2" and 1" respectively, this being 1/3 of the travel available I decided not to try that on the road.</p><p></p><p>Chris.</p></blockquote><p></p>
[QUOTE="Chris Launders, post: 77920, member: 2010"] I can only tell you the ratings etc for the standard springs I measured and what I have fitted. Standard C springs were 15" long 56lb/in with inner springs (on twins only) 15" long 10lb/in D springs were the 16.5" long but the same 56lb/in rating. These are all around 14.5" fitted. I am at present using two 16.5" 36lb/in springs with the modified steering stem which means they are 13.5" long fitted (around 1" less than standard) At this the suspension sits down 1/4" on it's wheels and a further 1/4" with me on board, I tried one 30lb/in spring and one 36lb/in spring and they increased to 1/2" and 1" respectively, this being 1/3 of the travel available I decided not to try that on the road. Chris. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Modified Steering Stem
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