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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Centre of flywheels and lateral centre of weight for a twin engine.
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<blockquote data-quote="Tom Gaynor" data-source="post: 19655" data-attributes="member: 4034"><p>That's torque reaction, acting in the opposite sense to motor rotation. The old joke about racing BMW solos was that they were fine unless off the deck over a jump: then the flywheels stopped and the bike revolved. It is very noticeable on a Sunbeam S7: whack it open out of a corner and the bike revolves clockwise from the riders point of view, picking itself up out of left-handers, laying itself further down out of rights. Because the Vin motor revolves "forwards" - anti-clock from the drive side - then either the front will rise or the back sink when power is applied.</p></blockquote><p></p>
[QUOTE="Tom Gaynor, post: 19655, member: 4034"] That's torque reaction, acting in the opposite sense to motor rotation. The old joke about racing BMW solos was that they were fine unless off the deck over a jump: then the flywheels stopped and the bike revolved. It is very noticeable on a Sunbeam S7: whack it open out of a corner and the bike revolves clockwise from the riders point of view, picking itself up out of left-handers, laying itself further down out of rights. Because the Vin motor revolves "forwards" - anti-clock from the drive side - then either the front will rise or the back sink when power is applied. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Centre of flywheels and lateral centre of weight for a twin engine.
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