The 2017 Evo 300 SS is the pure-bred of the Evo range, and comes with new crankcase derived directly from the 250/300cc engine (and no longer from the 125cc one, as in the past).
The 2015 MY Beta Evo 300 has the biggest displacement engine in the Evo series, a two-stroke, liquid-cooled, 299cc, single cylinder paired to a six-speed manual transmission. Also, a new head ...