A mixer is included to ensure the petrol to oil mixture is correct. Petrol Mixed With 2-stroke Oil 25:1 (mixer included). 3.4HP / 11,000RPM.Upgraded 6 Diameter Pneumatic Racing Tyres. 49cc Single Cylinder Air Cooled 2 Stroke. Not suitable for use on Public Highway. Ask Me: Start Guide Download Manual. Ask Me: Assembly Instructions Download. Spare Parts For This Model. Ask Me: Spare Parts For This Model. The item "49cc Z20 Kids Petrol ATV Quad Bike 50CC Petrol Mixed 2-stroke Oil (Offer)" is in sale since Monday, November 19, 2018. This item is in the category "Sporting Goods\Scooters\Pocket Bikes". The seller is "lambanomart" and is located in Manchester, Lancashire. This item can be shipped worldwide.