With a speed range up to maximum 30 000 rpm is this engine in the nitro rc car seems to be with absolute speed professionals for the highest quality materials and flawless processing in this engine is an absolute self intelligibility just as the factory set and easily adjustable 3 needle slide carburettor this provides for an optimum mixture preparation in any situation whether on road and off road whether amateur or competitive use with this engine we offer you the right drive for your m