The Naraku 70cc aluminium cylinder kit for Minarelli horizontal AC engines is a cost effective way of increasing power on your scooter with the aluminium material providing significantly better heat dissipation. The Cylinder is not a high revving racing cylinder, more designed for strong acceleration and torque. The Naraku kit has The molybdenum coated piston aiding the crucial running-in period. Very good value for money and suitable for everyday use, can used with the original exhaust system. Kit includes barrel, piston, rings, pin, clips and required gaskets. Suitable for use with standard (unrestricted) exhaust system as well has performance pipes, upjetting of the carburettor will be required by approx 7 to 10%. Original cylinder can be used but we do fully recommend using the Naraku cylinder head due to the increased compression, if a 70 head is not used then this may cause issues with using the electric start.