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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
MIller Stop Tail light
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<blockquote data-quote="A_HRD" data-source="post: 98689" data-attributes="member: 49"><p>OK, I'm back home now and I have dug out my unrestored original Miller Tail-light and my very old repro that I bought from Domiracer in the USA nearly 2 decades ago. </p><p></p><p>Here are the backplate measurements <strong>(original first, Domiracer second)</strong>:</p><p>Thickness: 1/16th, 1/16th.</p><p>OD: 2-1/2", 2-1/2".</p><p><span style="color: rgb(184, 49, 47)">ID: 1-7/64", 1-7/64". </span></p><p>6 hole PCD: 2-1/8", 2-1/8".</p><p>6 hole Dia: 5/32", 5/32".</p><p>2 hole PCD: 1-1/2", 1-1/2".</p><p><span style="color: rgb(184, 49, 47)">2 hole Dia: 3/16, 5mm. </span></p><p></p><p>Two things (in red) stand out: </p><p></p><p>1. The ID in the "MSVH Y3" excellent photo's above is quoted as 1-1/16". I would recommend the original 1-7/64" as this gives almost 50 thou greater clearance for the 2 x barrel-terminals on the rear - which are of a larger dia on the repro variants. Electrical short circuits not wanted here! </p><p></p><p>2. The 2 inner holes have been drilled by Domiracer to take 5mm screws, which at approx 10 thou dia bigger is of no real consequence. (Even Concours Judges wouldn't know <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool :cool:" loading="lazy" data-shortname=":cool:" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite12" alt="o_O" title="Er... what? o_O" loading="lazy" data-shortname="o_O" /> ). </p><p></p><p>[ATTACH=full]23423[/ATTACH]</p><p></p><p>As an aside, I think the thick paper gasket on the original lamp is a previous owner's attempt to help prevent vibration blowing the tungsten filament bulbs...! </p><p></p><p>Hope this is helpful Chris,</p><p></p><p>Peter B</p></blockquote><p></p>
[QUOTE="A_HRD, post: 98689, member: 49"] OK, I'm back home now and I have dug out my unrestored original Miller Tail-light and my very old repro that I bought from Domiracer in the USA nearly 2 decades ago. Here are the backplate measurements [B](original first, Domiracer second)[/B]: Thickness: 1/16th, 1/16th. OD: 2-1/2", 2-1/2". [COLOR=rgb(184, 49, 47)]ID: 1-7/64", 1-7/64". [/COLOR] 6 hole PCD: 2-1/8", 2-1/8". 6 hole Dia: 5/32", 5/32". 2 hole PCD: 1-1/2", 1-1/2". [COLOR=rgb(184, 49, 47)]2 hole Dia: 3/16, 5mm. [/COLOR] Two things (in red) stand out: 1. The ID in the "MSVH Y3" excellent photo's above is quoted as 1-1/16". I would recommend the original 1-7/64" as this gives almost 50 thou greater clearance for the 2 x barrel-terminals on the rear - which are of a larger dia on the repro variants. Electrical short circuits not wanted here! 2. The 2 inner holes have been drilled by Domiracer to take 5mm screws, which at approx 10 thou dia bigger is of no real consequence. (Even Concours Judges wouldn't know :cool:o_O ). [ATTACH=full]23423[/ATTACH] As an aside, I think the thick paper gasket on the original lamp is a previous owner's attempt to help prevent vibration blowing the tungsten filament bulbs...! Hope this is helpful Chris, Peter B [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
MIller Stop Tail light
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