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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Rear shock absorber alignment
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<blockquote data-quote="medat727" data-source="post: 136770" data-attributes="member: 1982"><p>This is straight from the horse’s mouth, I had contemplated the 1/2” thread as I was looking at the damage trackside and this just confirmed it, that and the bushings or a wide tailpiece like DD does will do the trick.</p><p></p><p>David</p><p></p><p></p><p>I would recommend making a new shaft out of 17-4 h900 or h1153 1/2” ground rod.</p><p></p><p>The threads in the eye are 3/8 x 16</p><p></p><p>The end that holds the piston on is 1 inch long and is threaded <a href="https://www.vincentownersclub.co.uk/x-apple-data-detectors://6" target="_blank">5/16 24</a></p><p></p><p>Some type of binding or sideloading has caused the fracture.</p><p></p><p>By making the shaft <a href="https://www.vincentownersclub.co.uk/x-apple-data-detectors://7" target="_blank">at 17-4</a> stainless steel</p><p></p><p>You will immediately double the strength of the shaft additionally if you simply threaded 1/2 by 20 TPI where it screws into the aluminum eye, you can increase the section where all the stress is being put. If you do this you must run a half 20 then hex jam nut under the bump stop and then tighten the eye up against this.</p><p></p><p>If you just want it simply fixed back to stock you can call Works shox spelled with an X this is Gil‘s daughters company Works Performance is out of business of course.</p><p></p><p>If there is no binding in the system the shaft should have been plenty strong the same design is utilized on BMW mono shock motorcycles and Honda ST 1100s for many years with the Same shaft design. Due to the fact that the Vincent may experience sideload and the eye does not allow for side to side twisting without loading the shock it may be worthwhile to upgrade the shaft design.</p><p></p><p>Pierre</p></blockquote><p></p>
[QUOTE="medat727, post: 136770, member: 1982"] This is straight from the horse’s mouth, I had contemplated the 1/2” thread as I was looking at the damage trackside and this just confirmed it, that and the bushings or a wide tailpiece like DD does will do the trick. David I would recommend making a new shaft out of 17-4 h900 or h1153 1/2” ground rod. The threads in the eye are 3/8 x 16 The end that holds the piston on is 1 inch long and is threaded [URL='https://www.vincentownersclub.co.uk/x-apple-data-detectors://6']5/16 24[/URL] Some type of binding or sideloading has caused the fracture. By making the shaft [URL='https://www.vincentownersclub.co.uk/x-apple-data-detectors://7']at 17-4[/URL] stainless steel You will immediately double the strength of the shaft additionally if you simply threaded 1/2 by 20 TPI where it screws into the aluminum eye, you can increase the section where all the stress is being put. If you do this you must run a half 20 then hex jam nut under the bump stop and then tighten the eye up against this. If you just want it simply fixed back to stock you can call Works shox spelled with an X this is Gil‘s daughters company Works Performance is out of business of course. If there is no binding in the system the shaft should have been plenty strong the same design is utilized on BMW mono shock motorcycles and Honda ST 1100s for many years with the Same shaft design. Due to the fact that the Vincent may experience sideload and the eye does not allow for side to side twisting without loading the shock it may be worthwhile to upgrade the shaft design. Pierre [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Rear shock absorber alignment
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