Kick Start and Gear Shifter. Single cylinder; 4-stroke, oil-cooled engine. Compression ratio: 11.5:1. M/r/min: 11.5 /80001±1.5%. Max Power(kw/r/min): 10.5/9500.Transmission ratio: Elementary: 4.058. Dimension (mm): 470 x 320 x 230. All Pit or Monkey bikes with Honda fitting horizontal engine. Standard fitment to the stomp/Demon X & Welsh Pit Bikes range. Please check out our other listings for many more Genuine Stomp Components. The item "Stomp ZS155 Pit Bike Engine Kit 155cc 160cc WPB Demon X welsh pit bike Race" is in sale since Sunday, September 3, 2017. This item is in the category "Vehicle Parts & Accessories\Motorcycle Parts\Other Motorcycle Parts". The seller is "ecm_race_dept" and is located in Ballyclare. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.