I did a bit of research on small gas engines before I purchased the Brillelli. I went with the Brillelli because its all up weight (including mount, muffler and Electonic ignition) was less that the Zenoah 2.0 cc and the price was much better as well. The zenoah is also a battery hog compared to others. I believe the all up weight of the Evolution 26 was also more thatn the Brillelli and it is also relatively pricy ~ $399. The 2.6 should be plenty of power for the cub and I have heard nothing but good things about Brillelli. Hope this helps.