Type si, 4 stroke, air cooled, sohc, fuel injection engine capacity 159.7 cm3 maximum power sport : 11.8 kw (16.04 ps) @ 8750 rpm, urban/ rain : 9.8 kw (13.32 ps) @ 8000 rpm max speed sport : 107 km/h, urban/ rain : 97 km/h max. torque (nm @ rpm) sport : 13.85 nm @ 7000 rpm, urban/ rain : 12.7 nm @ 6500 rpm fuel supply system fuel injection valve per cylinder 2 valves starting electric start power to weight ratio base drum: 0.0861 kw/kg base disc: 0.0855 kw/kg cooling system air cooled muffler conventional design gear box 5 speed gear box