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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Primary Belt drive by Bob Newby
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<blockquote data-quote="johnmead" data-source="post: 41878" data-attributes="member: 776"><p>Osman Malak of the, I think, Dutch section is in the process of making primary covers that will fit the 40mm Newby beltdrive setup. We have been emailing back and forth for the last year or so and he sent me pictures of a couple of CNC covers and the last email I got from him had a picture of the first cast cover.</p><p></p><p>I have emailed him a couple of times over the last 3 months and have not gotten a response. Maybe someone in the UK or Europe will know how to contact him.</p><p></p><p>I am putting a Newby drive in a 1200 twin with Quaife 5-speed and got nuts from Bob for both the crank and clutch. I only had to machine off some of the threads on the mainshaft to fit the clutch closer to the inside of the primary. I eliminated both spacer that came with the kit and that gave me enough without grinding the engine cases.</p><p></p><p>Bob said that a 1/2 inch thick spacer would be required to use a stock cover with the clutch chamber removed. I don't know if that was for the 39mm or 40mm unit.</p><p>John Mead</p></blockquote><p></p>
[QUOTE="johnmead, post: 41878, member: 776"] Osman Malak of the, I think, Dutch section is in the process of making primary covers that will fit the 40mm Newby beltdrive setup. We have been emailing back and forth for the last year or so and he sent me pictures of a couple of CNC covers and the last email I got from him had a picture of the first cast cover. I have emailed him a couple of times over the last 3 months and have not gotten a response. Maybe someone in the UK or Europe will know how to contact him. I am putting a Newby drive in a 1200 twin with Quaife 5-speed and got nuts from Bob for both the crank and clutch. I only had to machine off some of the threads on the mainshaft to fit the clutch closer to the inside of the primary. I eliminated both spacer that came with the kit and that gave me enough without grinding the engine cases. Bob said that a 1/2 inch thick spacer would be required to use a stock cover with the clutch chamber removed. I don't know if that was for the 39mm or 40mm unit. John Mead [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Primary Belt drive by Bob Newby
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