Quote:
Originally posted by Steve Carlton
I'm talking about historically; the roots of our powerplant. How much does our motorcycle engine have in common with BMW's engines from the beginning through WWII?
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BMW was in the business of aeroplane engines for many years. those aeroplane engines looked like that big pic in the post above...lots of cylinders postioned radially around the crank. well, this heritage is demonstrated in the blue and white and shape of the roundel for sky, clouds, and propeller blades.
so engine-wise, lop off all but the two opposing cylinders and you have the basic layout for the flat twin used on the bikes. this design has carried through in the 1920's to today.
feel smarter?
repoe3