Harley-Davidson Sportster 1200 Nightster XL1200N SpecificationsEngine
Engine3 Air-cooled, Evolution®
Valves Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters; two valves per cylinder
Bore x Stroke 3.50 in. x 3.81 in.(88.90 mm x 96.82 mm)
Displacement3 73.30 cu. in. (1200 cc)
Compression Ratio 9.7:1
Fuel System4 Electronic Sequential Port Fuel Injection (ESPFI)
Air Cleaner Paper cartridge type
Lubrication System Dry-sump
Drivetrain
Primary Drive Chain, 57/38 ratio
Final Drive Belt, 68/29 ratio
Clutch Multi-plate, wet
Transmission 5-speed
U.S. Gear Ratios (overall):
• 1st 9.315
• 2nd 6.653
• 3rd 4.948
• 4th 4.102
• 5th 3.517
Chassis
Frame Mild steel, tubular frame; circular sections; cast junctions
Swingarm Mild steel, rectangular tube section, stamped junctions; MIG welded
Front Forks 39 mm
Rear Shocks Coil-over; preload dual-adjustable
Wheels5: Black, Laced Steel
• Front 19 in. x 2.50 in. (482.60 mm x 63.50 mm)
• Rear 16 in. x 3 in. (406.40 mm x 76.20 mm)
Brakes:
• Caliper Type Dual-piston front, single-piston rear
• Rotor Type Patented, uniform expansion rotors
(diameter x width):
• Front 11.50 in. x .20 in. (292.10 mm x 5.08 mm)
• Rear 11.50 in. x .23 in. (292.10 mm x 5.84 mm)
Suspension Travel:
• Front Wheel 3.62 in. (91.95 mm)
• Rear Wheel 1.63 in. (41.40 mm)
Performance
Engine Torque6 (per SAE J1349):
• North America 79 ft. lbs. @ 4000 rpm (107.11 Nm @ 4000 rpm)
Lean Angle (per SAE J1168):
• Right 29°
• Left 30°
(EPA urban/highway test)
42/57 mpg (5.60/4.13 L/100 km)