AND Scott's has internal and external modifications NOT done by BME.
I've had both, and I have to tell you I prefer Scott's for several reasons.
ORIGINAL: arobatx
Just in case some haven't realized....look close at this motor....recognize it? Imagine the cylinder fins NOT rounded off....yeah, now you're starting to remember seeing something like this in big, bright, colorful magazine ads.

you might as well look at the track record of the BME 50 while you are at it....hint hint! Good engine, worth every penny, and Scott is an excellent guy to work with.