The 390 Adventure X being the more affordable of the two misses out on features such as cruise control, traction control, ...
For the STD version, 451 cc Petrol engine of Ninja 500 produces 45.4 PS @ 9000 rpm of power and 42.6 Nm @ 6000 rpm of torque. Whereas for the STD version, 390 cc Petrol engine of 2025 390 Adventure ...