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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Series 'A' Handlebar Levers
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<blockquote data-quote="A_HRD" data-source="post: 2144" data-attributes="member: 49"><p>My early 'A' Comet basket-case doesn't have any handlebar levers; so I'm going to make myself a set. I started by borrowing 2 alleged original pairs, but they are slightly different in details. Unsurprisingly, discussions in my local Section have led to disagreements about what was standard. So here are few questions for the assembled experts:</p><p></p><p>1. One group reckons that the levers were all machined soley as clutch levers, so when you turn one over to use for the front brake, the little slot to engage the inner cable adjacent to the cable-nipple is uppermost. Is this true or were they handed? </p><p></p><p>2. There is also a lot of discussion about the pivot fasteners. Were they hex nuts and bolts? Were they cheesehead slotted? Were they 0BA or 1/4 BSF? Does anyone care?! </p><p></p><p>3. Then there's the 2 fasteners that clamp the pivot assemblies to the 1 inch bars. One school of thought says they were squareheaded whitworth bolts (& nuts?). That doesn't seem likely, so what was right? </p><p></p><p>4. And finally, is the valve decompressor lever the same as the clutch lever; or was it a smaller pointy device similar to the post-war machines? </p><p></p><p>Grateful for any informed views on the above...</p><p></p><p>Regards, Peter Barker</p></blockquote><p></p>
[QUOTE="A_HRD, post: 2144, member: 49"] My early 'A' Comet basket-case doesn't have any handlebar levers; so I'm going to make myself a set. I started by borrowing 2 alleged original pairs, but they are slightly different in details. Unsurprisingly, discussions in my local Section have led to disagreements about what was standard. So here are few questions for the assembled experts: 1. One group reckons that the levers were all machined soley as clutch levers, so when you turn one over to use for the front brake, the little slot to engage the inner cable adjacent to the cable-nipple is uppermost. Is this true or were they handed? 2. There is also a lot of discussion about the pivot fasteners. Were they hex nuts and bolts? Were they cheesehead slotted? Were they 0BA or 1/4 BSF? Does anyone care?! 3. Then there's the 2 fasteners that clamp the pivot assemblies to the 1 inch bars. One school of thought says they were squareheaded whitworth bolts (& nuts?). That doesn't seem likely, so what was right? 4. And finally, is the valve decompressor lever the same as the clutch lever; or was it a smaller pointy device similar to the post-war machines? Grateful for any informed views on the above... Regards, Peter Barker [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Series 'A' Handlebar Levers
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