Not sure about the 150cc bikes.... are they 2-strokes?
You may want to look at the new Kawasaki Ninja 650 R, or an SV650.
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One of the consequences of such notions as "entitlements" is that people who have contributed nothing to society feel that society owes them something, apparently just for being nice enough to grace us with their presence.”
Thomas Sowell (American Writer and Economist, b.1930)