2023 Harley-Davidson® RH975 - Nightster , LEAN AND MEAN PERFORMANCE 01 LIQUID COOLED REVOLUTION MAX 975 Performance when you need it, the Revolution Max 975 engine is a liquid-cooled V-Twin tuned to make tremendous torque at low RPM, delivering strong acceleration from the start with robust power through the mid-range. 02 FRAME Nightster does not use a traditional hoop-style frame. Instead, the powertrain is used as a stressed member significantly reducing weight and resulting in a very stiff chassis. Each component has been designed to be compact, strong, and lightweight.

LENGTH
89.4 in.
SEAT HEIGHT, LADEN 7
27.1 in.
GROUND CLEARANCE
4.5 in.
RAKE
30
TRAIL
5.4 in.
WHEELBASE
61.3 in.
TIRES, FRONT SPECIFICATION
100/90-19 57H
TIRES, REAR SPECIFICATION
150/80B16 77H
TIRE, TYPE
Dunlop Harley-Davidson Series Bias Blackwall
FUEL CAPACITY
3.1 gal.
OIL CAPACITY (W/FILTER)
4.75 qt.
WEIGHT, AS SHIPPED
462 lb.
WEIGHT, IN RUNNING ORDER
481 lb.
ENGINE
ENGINE 1
Revolution Max 975T
BORE
3.82 in.
STROKE
2.6 in.
DISPLACEMENT
59.5 cu in
COMPRESSION RATIO
12:1
FUEL SYSTEM 3
Electronic Sequential Port Fuel Injection (ESPFI)
EXHAUST
2-into-1; catalyst in header
PERFORMANCE
ENGINE TORQUE TESTING METHOD
J1349
ENGINE TORQUE 2
70 ft-lb
ENGINE TORQUE (RPM)
5000
HORSEPOWER
90 HP / 67 kW @ 7500 rpm
LEAN ANGLE, RIGHT (DEG.)
32
LEAN ANGLE, LEFT (DEG.)
32
FUEL ECONOMY TESTING METHOD
Estimated City/Hwy
FUEL ECONOMY 5
52.4 mpg
DRIVE TRAIN
PRIMARY DRIVE
Gear, 49/89 ratio
GEAR RATIOS (OVERALL) 1ST
12.21
GEAR RATIOS (OVERALL) 2ND
9.022
GEAR RATIOS (OVERALL) 3RD
6.994
GEAR RATIOS (OVERALL) 4TH
5.641
GEAR RATIOS (OVERALL) 5TH
4.731
GEAR RATIOS (OVERALL) 6TH
4.131
CHASSIS
FRONT FORK
41mm SHOWA Dual Bending Valve conventional forks. Aluminum fork triple clamps.
REAR SHOCKS
Rear suspension is dual outboard, direct-acting (no linkage) emulsion technology shock absorbers with coil springs and a threaded collar for pre-load adjustment.
WHEELS, FRONT TYPE 9
Aluminum cast, satin black
WHEELS, REAR TYPE 9
Aluminum cast, satin black
BRAKES, TYPE
Front: single rotor, floating, hub - mounted; Rear: solid uniform expansion rotor
BRAKES, CALIPER TYPE
Front: axially mounted, 4-piston caliper; Rear: floating, single piston caliper
ELECTRIC
LIGHTS (AS PER COUNTRY REGULATION), HEADLAMP, TAIL/STOP/FRONT SIGNAL LIGHTS 8
All LED headlamp, low and high beam with signature position lighting; All LED rear lighting; LED bullet turn signals
GAUGES
4-inch viewable round gauge area analog display with, Speedometer, L/R turn Indication, Traction Control Indication, Coolant Temperature Alert, ABS alert, Fog Lamp Indication, Battery Voltage Alert, High Beam Indicator, Low Fuel Indication, Rear-ABS Disabled Indication, Failure-Indicati