A True racing engine, the new S9 meets the needs of the most demanding drivers. This engine is the greatest compromise between performance and reliability as it also provide you all 2009 technical developments at a low price. The S9 is the engine that will allow you to enter the small world of high competition. Features • High level racing engine • 7 ports • Standard plug • 13mm crankshaft (square stroke) • 13mm main bearing and double rubber seal front ball bearing • Nylon 8mm carburettor • Light Off Road L2G cooling head (17g lighter) • Aluminium orange anodized carburettor wrist pin • Dust protection caps for carburettor, exhaust, fuel intake and top of the crankshaft Specification • Contents: 3.49 cc • Bore: 16.42mm • Stroke: 16.42mm • Porting intake: 7 • Porting exhaust: 1 • Crankshaft: 13mm Turbo • Carburetor: Slide Composite 8mm • Glowplug: Normal #01056-6 • Weight: 347 Gr.