Piston cylinder without cylinder head 74cc ITALKIT bi-segment aluminum Ø47.15mm for DERBI GRAN SPORT, ANTORCHA .. 74cc

Ideal for refurbishing your old DERBI GRAN SPORT and ANTORCHA 74cc motorcycle, here is the high engine without ITALKIT cylinder head! It is delivered complete with pipe, seal, piston, segments, axis, two-segment piston clips and screws. This kit is more efficient than the original but also of excellent quality! Manufacture GILARDONI for the cylinder and VERTEX for the piston!

As an option we offer you a stage 1 preparation, this preparation is a modification of the channels and the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. An improvement to the piston and the bottom of the skirt is also included in this modification. Allow a little extra time for this preparation!