14 August. Friday 2026
Harley-Davidson Softail Slim - 2018 Specifications and Reviews
The 2018 Harley-Davidson Softail Slim appeals to riders seeking classic styling with modern performance. Powered by the Milwaukee-Eight 107 engine and featuring a low 26-inch seat height, it excels as an accessible cruiser for both experienced and newer riders. Known for its iconic retro design and manageable weight, this bike balances authentic Harley character with everyday ridability.
General information | |
| Category | Custom / cruiser |
| Year | 2018 |
| Model | Harley-Davidson Softail Slim |
| | |
Engine and Transmission Specifications | |
| Exhaust system | 2-into-2 shotgun; catalyst in muffler |
| Greenhouse gases | 127.6 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel consumption | 5.50 litres/100 km (18.2 km/l or 42.77 mpg) |
| Driveline | Chain 34/46 ratio primary drive |
| Clutch | Multi-plate with diaphragm spring in oil bath |
| Transmission type,final drive | Belt |
| Gearbox | 6-speed |
| Cooling system | Air |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Fuel system | Injection. Electronic Sequential Port Fuel Injection (ESPFI) |
| Bore x Stroke | 100.0 x 111.1 mm (3.9 x 4.4 inches) |
| Compression | 10.0:1 |
| Torque | 145.00 Nm (14.8 kgf-m or 107.0 ft.lbs) @ 3000 RPM |
| Power | 86.00 HP (62.8 kW) @ 5020 RPM |
| Engine details | Milwaukee-Eight® 107 |
| Engine type | V2, four-stroke |
| | |
Brakes, suspension, Frame and wheels | |
| Wheels | Gloss Black, Steel Laced |
| Rear brakes | Single disc. Optional ABS. 2-piston |
| Front brakes | Single disc. Optional ABS. 4-piston |
| Rear tyre | 150/80-B16 |
| Front tyre | 130/90-B16 |
| Rear Suspension | Twin shocks |
| Front Suspension | Telescopic fork |
| Trail | 147 mm (5.8 inches) |
| Rake (fork angle) | 30.0° |
Physical measures and capacities | |
| Oil capacity | 3.30 litres (0.22 quarts) |
| Fuel capacity | 18.90 litres (4.99 gallons) |
| Wheelbase | 1,630 mm (64.2 inches) |
| Ground clearance | 120 mm (4.7 inches) |
| Overall length | 2,310 mm (90.9 inches) |
| Seat height | 660 mm (26.0 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.2955 HP/kg |
| Weight incl. oil, gas, etc | 304.0 kg (670.2 pounds) |
| Dry weight | 291.0 kg (641.5 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Light | High beam, neutral, low oil pressure, turn signals, engine diagnostics, security system (optional), 6-speed, low fuel warnings |
| Instruments | Tank-mounted electronic speedometer with odometer, time-of-day clock on odometer, dual tripmeter, RPM/gear display, low fuel warning light and countdown feature, low oil pressure indicator light, engine diagnostics readout, LED indicator lights, 6-speed indicator light |
| Starter | Electric |
| Color options | Vivid Black, Black Denim, Industrial Gray Denim, Wicked Red, Bonneville Salt Denim |
Performance Profile & Rider Fit
86 hp
Peak Power
5.2s
0-60 mph
Best For
Track10%
City45%
Cornering30%
Daily Riding55%
Touring55%
Passenger45%
Rider Profile
| Best For | Suits riders from newer intermediate to experienced who want a classic heavyweight cruiser rather than a beginner's first bike. |
| Purpose | Built for laid-back boulevard cruising and stylish weekend rides rather than outright performance. |
| Rider Fit | Low 648mm seat height makes it approachable for shorter riders, but nearly 305kg wet weight demands confident low-speed handling and strength when maneuvering it off the kickstand or in tight parking. |
| Character | A stripped-down, minimalist Softail with bobber styling, deep torque from the Milwaukee-Eight V-twin, and relaxed, low-slung ergonomics that reward smooth, unhurried riding. |
| Not Ideal For | Not for riders seeking sharp cornering agility, off-road capability, or a light, flickable machine for tight technical roads. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Rider Reviews
Total comments: 1
MotorcycleDB Review
The 2018 Harley-Davidson Softail Slim is a classic American cruiser motorcycle that offers a powerful and comfortable ride. With its timeless design and modern performance features, the Softail Slim is a standout option for riders looking for a reliable and stylish bike. The Milwaukee-Eight 107 engine provides plenty of power for the open road, while the Softail chassis and suspension offer a smooth and responsive ride. The low-slung stance and retro-inspired design make the Softail Slim a head-turner, and the customizable options allow riders to make this bike their own. In conclusion, the 2018 Harley-Davidson Softail Slim is a top-notch cruiser motorcycle that offers both style and performance. Its classic design and modern features make it a standout option for riders who want a reliable and stylish bike for their adventures on the road. Whether you're cruising through the city streets or hitting the open highway, the Softail Slim delivers a comfortable and powerful ride that is sure to impress.Add a Comment
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