Aprilia RS 660 vs Harley-Davidson Fat Boy 114

In 2025 Aprilia RS 660 or Harley-Davidson Fat Boy 114 choose which bike is best for you - compare these two bikes or scooters on the basis of their price, mileage, features, colours and other specs. Aprilia RS 660 Price starts at Rs. 17.74 Lakhs (ex-showroom price) whereas the Harley-Davidson Fat Boy 114 Price starts at Rs. 25.69 Lakhs (ex-showroom price). RS 660 engine makes power and torque 100 PS PS & 67 Nm. On the other hand, Fat Boy 114 engine makes power & torque 95.1 PS PS & 155 Nm respectively. Aprilia offers the RS 660 in 2 colours. Harley-Davidson offers the Fat Boy 114 in 4 colours. The RS 660 mileage is around 20.4 kmpl. The Fat Boy 114 mileage is around 18.1 kmpl.