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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Brakes
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<blockquote data-quote="greg brillus" data-source="post: 83635" data-attributes="member: 597"><p>If the slave cylinder had two opposing pistons, then there would be no need to make the cylinder move in the brake plate, as the pistons would move to a position to apply equal pressure to each shoe. Only one is "leading" and the other is "Trailing" that's why the length of the linings on the shoes are different to help compensate this. The major disadvantage of drums on bikes verses cars is they operate mechanically, so you need good linings that are radiused to the drum ID as accurately as possible. Drum brakes on bikes are a complete compromise, on a relatively fast bike like a Vincent the brakes are simply too small. I always tell everyone that "They go better than they stop"...............<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /></p></blockquote><p></p>
[QUOTE="greg brillus, post: 83635, member: 597"] If the slave cylinder had two opposing pistons, then there would be no need to make the cylinder move in the brake plate, as the pistons would move to a position to apply equal pressure to each shoe. Only one is "leading" and the other is "Trailing" that's why the length of the linings on the shoes are different to help compensate this. The major disadvantage of drums on bikes verses cars is they operate mechanically, so you need good linings that are radiused to the drum ID as accurately as possible. Drum brakes on bikes are a complete compromise, on a relatively fast bike like a Vincent the brakes are simply too small. I always tell everyone that "They go better than they stop"...............:eek: [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Brakes
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