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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Half time pinion specification
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<blockquote data-quote="Robert Watson" data-source="post: 148652" data-attributes="member: 38"><p>First: I think that is not Craig's doing but the Spares Co trying to get a customer to close, so that they only have to send 3 1/2T pinions and not the whole box!</p><p></p><p>Second: and that's why they are called "Verynear" calipers!</p><p></p><p>Third: I have a collection, probably around 30-40 various new and used 1/2T pinions. I have learned not to trust the stampings on them. Only proper way is to use thread wires (I think .120 Dia, Mistake should be the .108 thread wires!) and measure the pitch dia of each gear, with a micrometer.</p></blockquote><p></p>
[QUOTE="Robert Watson, post: 148652, member: 38"] First: I think that is not Craig's doing but the Spares Co trying to get a customer to close, so that they only have to send 3 1/2T pinions and not the whole box! Second: and that's why they are called "Verynear" calipers! Third: I have a collection, probably around 30-40 various new and used 1/2T pinions. I have learned not to trust the stampings on them. Only proper way is to use thread wires (I think .120 Dia, Mistake should be the .108 thread wires!) and measure the pitch dia of each gear, with a micrometer. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Half time pinion specification
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