2022 Harley-Davidson Nighster RH975. The Nightster model comes with the liquid cooled Revolution max 975 motor. This motor gives 90 horsepower and 70ft pounds of torque with power you can feel on this light and nimble bike. With and average of 52 mpg you can enjoy this bike without emptying your pockets at the gas station. Come on down and TEST RIDE!!!!!!!!!