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Harley-Davidson Softail Slim - 2021 Specifications and Reviews

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General information

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CategoryCustom / cruiser
Year2021
ModelHarley-Davidson Softail Slim

Engine and Transmission Specifications

Exhaust system2-into-2 shotgun; catalyst in muffler
Greenhouse gases116.0 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption5.00 litres/100 km (20.0 km/l or 47.04 mpg)
DrivelineChain 34/46 ratio primary drive
ClutchMulti-plate with diaphragm spring in oil bath
Transmission typeBelt   (final drive)
Gearbox6-speed
Cooling systemAir
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Fuel systemInjection. Electronic Sequential Port Fuel Injection (ESPFI)
Bore x Stroke100.0 x 111.1 mm (3.9 x 4.4 inches)
Compression10.0:1
Torque149.2 Nm (15.2 kgf-m or 110.0 ft.lbs) @ 3000 Revolutions">RPM
Power86.0 Horsepower">HP (62.8 Kilowatt">kW)) @ 5020 Revolutions">RPM
Engine detailsMilwaukee-Eight® 107
Engine typeV2, four-stroke
Capacity:1746.0 ccm (106.54 cubic inches)
 
 

Brakes, suspension, Frame and wheels

WheelsGloss Black, Steel Laced
Rear brakesSingle disc. Optional ABS. 2-piston
Front brakesSingle disc. Optional ABS. 4-piston
Rear tire150/80-B16
Front tire130/90-B16
Rear SuspensionTwin shocks
Front SuspensionTelescopic fork
Trail147 mm (5.8 inches)
Rake (fork angle)30.0°

Physical measures and capacities

Oil capacity4.70 litres (4.97 US quarts)
Fuel capacity18.90 litres (4.99 US gallons)
Wheelbase1630 mm (64.2 inches)
Ground clearance120 mm (4.7 inches)
Overall length2310 mm (90.9 inches)
Seat height648 mm (25.5 inches) If adjustable, lowest setting.
Power/weight ratio0.2955 HP/kg
Weight incl. oil, gas, etc304.4 kg (671.0 pounds)
Dry weight291.0 kg (641.5 pounds)
 
 

Other specs

LightHigh beam, neutral, low oil pressure, turn signals, engine diagnostics, security system (optional), 6-speed, low fuel warnings
Instruments5-inch analog speedometer with digital gear, odometer, fuel level, clock, trip, range and tachometer indication
StarterElectric
Color optionsVivid Black, Billiard Red, River Rock Grey Denim/Black Denim, Midnight Crimson Red/Stone Washed White Pearl

Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2021 Harley-Davidson Softail Slim is a classic and stylish motorcycle that offers a smooth and comfortable ride. With its blacked-out appearance and vintage-inspired design, it exudes old-school charm while still delivering modern performance and technology. The compact and lightweight frame of the Softail Slim makes it easy to handle, while the powerful Milwaukee-Eight 107 engine provides plenty of torque for an exhilarating riding experience. Whether you're cruising down the open road or navigating through city streets, the Softail Slim delivers a reliable and enjoyable ride. If you're in the market for a timeless and reliable motorcycle, the 2021 Harley-Davidson Softail Slim is a top contender. Its sleek design and impressive performance make it a versatile option for riders of all experience levels. With its smooth handling and powerful engine, the Softail Slim delivers a satisfying ride every time. Whether you're a seasoned rider or just getting started, the Softail Slim is a solid choice for anyone looking for a stylish and dependable motorcycle.
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