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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Handlebar Control levers PR14, PR15, PR16
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<blockquote data-quote="TouringGodet" data-source="post: 16249" data-attributes="member: 27"><p>To throw more into the mix, I have an original Shadow built in Nov '52 that came with Bowden levers, all three. The valve lifter is 7/8" from center of pivot to center of nipple, while the clutch lever is 1 1/8".</p><p></p><p>The offset from pivot to cable is more important for leverage, like for your front brake. For distance your clutch rod will travel, isn't it equally important how many degrees your clutch lever can swing before it hits your handlebar? I can't speak for Amal levers, as I only have Bowden and Doherty, but the post that the Bowden lever rests against is at a much wider angle relative to your grip, compared to the Doherty post. So my Bowden lever can swing a wider arc than the Doherty lever. To get the most lift at the clutch, wouldn't you want both a wide arc, plus a longer radius (the pivot dimension)?</p><p></p><p>How does an Amal post compare to a Bowden, when measuring the degrees the post is canted, relative to the handlebar?</p></blockquote><p></p>
[QUOTE="TouringGodet, post: 16249, member: 27"] To throw more into the mix, I have an original Shadow built in Nov '52 that came with Bowden levers, all three. The valve lifter is 7/8" from center of pivot to center of nipple, while the clutch lever is 1 1/8". The offset from pivot to cable is more important for leverage, like for your front brake. For distance your clutch rod will travel, isn't it equally important how many degrees your clutch lever can swing before it hits your handlebar? I can't speak for Amal levers, as I only have Bowden and Doherty, but the post that the Bowden lever rests against is at a much wider angle relative to your grip, compared to the Doherty post. So my Bowden lever can swing a wider arc than the Doherty lever. To get the most lift at the clutch, wouldn't you want both a wide arc, plus a longer radius (the pivot dimension)? How does an Amal post compare to a Bowden, when measuring the degrees the post is canted, relative to the handlebar? [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Handlebar Control levers PR14, PR15, PR16
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