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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Rear Sprocket
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<blockquote data-quote="Robert Watson" data-source="post: 138417" data-attributes="member: 38"><p>Vincent My recent batch of hard sprockets (in 520 chain 46, 47 and 48T only) are made from 4140 and salt bath nitride hardened at 1000 deg f so no distortion. they claim around RC65 10 - 13 thou deep.</p><p></p><p>But they are pricey and only useful for you and I doing high mileages -- well me not so much right now!</p><p></p><p>As for chains it seems I get maybe 15 - 18 K and then suddenly a few links get really sloppy as the seals fail. Pretty much more than 1 click or two on the adjusters and the chain is done.</p></blockquote><p></p>
[QUOTE="Robert Watson, post: 138417, member: 38"] Vincent My recent batch of hard sprockets (in 520 chain 46, 47 and 48T only) are made from 4140 and salt bath nitride hardened at 1000 deg f so no distortion. they claim around RC65 10 - 13 thou deep. But they are pricey and only useful for you and I doing high mileages -- well me not so much right now! As for chains it seems I get maybe 15 - 18 K and then suddenly a few links get really sloppy as the seals fail. Pretty much more than 1 click or two on the adjusters and the chain is done. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Rear Sprocket
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