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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Twin rear brakes on an open "D"
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<blockquote data-quote="vince998" data-source="post: 14768" data-attributes="member: 261"><p>Hi All,</p><p></p><p>Has anybody ever modified a series D RFM for twin rear brakes.</p><p></p><p>Looking at my RFM, and comparing it with my comets, i see that the lug for the torque arm is present, and so are the bosses for the cross shaft. They´re just in "unbored" condition.</p><p></p><p>Does anybody know if the factory took the same lower RFM castings for C´s & D´s, but left the D´s unbored/un drilled.</p><p></p><p>My biggest issue is of course weakening the front RFM casting in some way.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite5" alt=":confused:" title="Confused :confused:" loading="lazy" data-shortname=":confused:" /></p><p></p><p>The plan is to take the VOC spares companies new 8" setup for the front, and then use the existing left hand brake and drum (water excluder and all) for the left hand rear.</p><p>I´ve done some initial calculations, and it should all fit.</p><p></p><p>Any help/experience appreciated.</p><p></p><p>Thanks.</p></blockquote><p></p>
[QUOTE="vince998, post: 14768, member: 261"] Hi All, Has anybody ever modified a series D RFM for twin rear brakes. Looking at my RFM, and comparing it with my comets, i see that the lug for the torque arm is present, and so are the bosses for the cross shaft. They´re just in "unbored" condition. Does anybody know if the factory took the same lower RFM castings for C´s & D´s, but left the D´s unbored/un drilled. My biggest issue is of course weakening the front RFM casting in some way.:confused: The plan is to take the VOC spares companies new 8" setup for the front, and then use the existing left hand brake and drum (water excluder and all) for the left hand rear. I´ve done some initial calculations, and it should all fit. Any help/experience appreciated. Thanks. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Twin rear brakes on an open "D"
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