Reading the new sport rider magazine...

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THose bike were awsome ! They also had a 5 cylinder 125cc in the 60s for road racing , if i remeber correctly its redline was 22.5k

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Those RPMs are above my hearing range :shock:

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AZgl1500 wrote:

Those RPMs are above my hearing range :shock:

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Those revs are way above my 'mechanical sympathy' range!!

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Mike Hailwood rode that 6cyl 250; to victory I believe...:action: :gunhead:

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They made some absolutely spectacular motors back in the 60's with those itty bittyHonda 6's, Moto Guzzi V-8, etc. And those riders nuts hung way closer to the ground than mine do riding those monsters (and the multicylinder 2-strokes) with drum brakes and early on wearing leather helmets. Amazing stuff for the time, or even now.

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AZgl1500 wrote:

Those RPMs are above my hearing range :shock:

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Or my comprehension... Anyone who understands the process of reciprocating engines know that pistons stop at top dead center and then travel the opposite direction and again when it reaches the bottom and for me visualizing this happening at 17k+ r.p.m’s is way beyond my comprehension… and then throw in valves and valve timing etc. Oh my…