I havent heard of them, but I have some experience with E-Ton 50cc and 90cc quads. I just got my 5 year old the 50, and my 9 year old the 90. Nice little quads, well made. Two strokes with oil injection so no mixing of the gas. Electric start with auto chokes and no shifting, all automatic. The 50 has an exhaust restricter that can be removed to almost double its power. Both have throttle limiters. Kids can just jump on and go! Their web address is www.e-tonamerica.com. Cost for the 50 was 1800, the 90 was 2000.