RETRO RACING STYLE; DELICATE DESIGN FOR CONFORTABLE DRIVING. cafe racer. 50cc& 125cc.. fashion.. SKYTEAM MODEL TECHNICAL INFORMATION ST125-17 (ACE 125)ST50-17 (ACE 50) ENGINE ENGINE TYPEAir-Cooled, 4 stroke, 1 cylinder, 2 valveAir-Cooled, 4 stroke, 1 cylinder, 2 valveDISPLACEMENT12449.5ccBORE*STROKE56.5X49.539mm×41.4mmCOMPRESSION RATIO9.0 TO 19.0 TO 1MAXIMUM POWER7.0Kw/8500rpm2.3Kw/7500rpmMAXIMUM ...