Rammer 1.good quality,CE,UL,EPA 2.about the engine,we have honda engine diesel engine and chinese gasoline engine RammerRM80HC to make the road smoothChinese gasoline engine:168F diesel engine:170F/178F power(hp) 3 5.5 net weight(kg) 68 hit frequency 650-695impact force(kg) 1300jump height 40-65fuel tank capacity(l) 2.8plate size(cm) 33*28.5dimension(cm) 43*76*102