The cylinder kit Racing by Italkit for Rotax 122 & 123 engines was cast from aluminium by Gilardoni and covered with a Nikasil coating. We recommend the combination with the Italkit V-Force reedplate for the best performance. Besides the cylinder, the package also includes a Vertex piston with molybdenum coating and the corresponding heat treated piston ring for a 57 mm bore, piston pin with clips, sealing material and a data sheet in Spanish. Further data are a 54.5 mm stroke, 139 cc displacement, 12 cc combustion chamber volume, 12.58:1 compression and 1.10 mm pinch point. According to Italkit the power output is 38 hp.
Drill hole: 57mm
Displacement: 139 cc
combustion chamber volume: 12cc
pinch point: 1.10 mm
Power according to Italkit: 38 PS (setup not known)