lifan vs loncin engines

which engine would be better and more reliable lifan or loncin (110cc used in the x 15s x18s and x 19s) or are they similar? Would they both last the same or if not which one would last longer and by how much? Please answer all questions. Thank You.

I've had both and both are very simular in reliability and performance until you get to the Lifan with the clutch on a secondaty shaft and not mounted to the crank, then those are better engines...

Are you looking into a new engine?? if so what size?

110cc. And what do you mean when you said "until you get to the Lifan with the clutch on a secondaty shaft and not mounted to the crank, then those are better engines..."? And which ones are better engines? And which one would last longer or are they about the same in lasting? Answer all questions. Thank You.

Does the x 19 use lifan or loncin engine? I know the x 18 uses loncin.