2018 Harley-Davidson® Softail Slim®

Softail Slim®



FLSL Softail Slim®

Model Code FLSL
Length (*Cert) 2,310 mm (90.9 in.)
Overall Width (*Cert) 970 mm (38.2 in.)
Overall Height (*Cert) 1,095 mm (43.1 in.)
Seat Height, Laden N/A
Seat Height, Unladen (*Cert) 660 mm (26 in.)
Ground Clearance (*Cert) 4.7 in. (120 mm)
Rake (steering head) (deg) 30
Fork Angle (deg) 30
Trail 147 mm (5.8 in.)
Wheelbase (*Cert) 1,630 mm (64.2 in.)
Tires, Type Dunlop® Harley-Davidson Series, bias blackwall front and rear
Tires, Front Model D401F
Tires, Front Specification 130/90B16,53H,BW
Tires, Rear Model D401T
Tires, Rear Specification 150/80B1677H,BW
Fuel Capacity 18.9 l (5 gal.)
Reserve Fuel Capacity, Fuel Injection (warning light) 3.8 l (1 gal.)
Oil Capacity (w/filter) 4.7 l (5 qt.)
Transmission Capacity .95 l (1 qt.)
Primary Chain Case Capacity 1.18 l (1.25 qt.)
Coolant Capacity N/A
Weight, As Shipped (*Cert) 291 kg (642 lb.)
Weight, In Running Order (*Cert) 304 kg (671 lb.)
Gross Vehicle Weight Rating (*Cert) 526 kg (1,160 lb.)
Gross Axle Weight Rating, Front (*Cert) 204 kg (450 lb.)
Gross Axle Weight Rating, Rear (*Cert) 331 kg (730 lb.)
Luggage Capacity -Volume N/A


FLSL Softail Slim®

Engine Milwaukee-Eight® 107
Bore (*Cert) 100 mm (3.937 in.)
Stroke (*Cert) 111.1 mm (4.374 in.)
Displacement (*Cert) 1,745 cc (107 cu in)
Compression Ratio (*Cert) 10.0:1
Fuel System Electronic Sequential Port Fuel Injection (ESPFI)
Air Cleaner 8.5 in. round, center bolt cover with washable fiberglass filter media
Exhaust 2-into-2 shotgun; catalyst in muffler
Lubrication System Pressurized, dry-sump with oil cooler


FLSL Softail Slim®

Primary Drive (*Cert) Chain, 34/46 ratio
Final Drive (*Cert) Belt, 32/66 ratio
Clutch Mechanical, 9 plate wet
Transmission 6-Speed Cruise Drive®
Gear Ratios (overall) 1st (*Cert) 9.311
Gear Ratios (overall) 2nd (*Cert) 6.454
Gear Ratios (overall) 3rd (*Cert) 4.793
Gear Ratios (overall) 4th (*Cert) 3.882
Gear Ratios (overall) 5th (*Cert) 3.307
Gear Ratios (overall) 6th (*Cert) 2.79


FLSL Softail Slim®

Frame Mild steel, tubular frame; rectangular section backbone; stamped, cast, and forged junctions; MIG welded; aluminum forged fender supports
Swingarm Mild steel, tubular sections, stamped x-member, forged axle junctions; MIG welded; removable belt spacer
Front Fork Dual-bending valve 49 mm telescopic with aluminum fork triple clamps; dual rate spring; “beer can” covers
Rear Shocks Hidden, free piston, coil-over monoshock; 43mm stroke; cam-style preload adjustment
Wheels, Optional Style Type N/A
Wheels, Front Type Gloss Black, Steel Laced
Wheels, Front Width 3 in. (76 mm)
Wheels, Front Height 16 in. (406 mm)
Wheels, Rear Type Gloss Black, Steel Laced
Wheels, Rear Width 3 in. (76 mm)
Wheels, Rear Height 16 in. (76 mm)
Brakes, Caliper Type 4-piston fixed front and 2-piston floating rear
Brakes, Rotor Type Solid, uniform expansion rotors
Brakes, Front Diameter 300 mm (11.8 in.)
Brakes, Front Thickness 5.1 mm (0.2 in.)
Brakes, Front is dual No
Brakes, Rear Diameter 292 mm (11.5 in.)
Brakes, Rear Thickness 5.8 mm (0.23 in.)
Brakes, Anti-Lock Braking System (ABS) Standard
Suspension Travel, Front 130 mm (5.1 in.)
Suspension Travel, Rear 86 mm (3.4 in.)


FLSL Softail Slim®

Engine Torque Testing Method (*Cert) EC 134/2014
Engine Torque (*Cert) 145 Nm (107 ft-lb)
Engine Torque (rpm) (*Cert) 3,000
Lean Angle Testing Method J1168
Lean Angle, Right (deg.) 27.4
Lean Angle, Left (deg.) 27.4
Fuel Economy Testing Method EU 134/2014
Fuel Economy 5.5 l/100 km (43 mpg)
CO2 Emissions Testing Method N/A
CO2 Emissions N/A


FLSL Softail Slim®

Lights (as per country regulation), Headlamp All LED, low beam, high beam and signature position lamp
Lights (as per country regulation), Tail/Stop Incandescent bullets
Lights (as per country regulation), Front Signal Lights Incandescent bullets
Lights (as per country regulation), Indicator Lamps High beam, turn signals, neutral, low oil pressure, engine diagnostics, ABS (optional), security, low battery voltage, low fuel
Lights, Rear Turn Signals N/A
Gauges 5-inch with digital speedometer, gear, odometer,fuel level and analog tachometer indication
Auxiliary Lamps N/A
Electric Power Outlet USB A-type; output 5V at 2.4A
GPS System N/A
Reverse Gear N/A

Warranty And Service

FLSL Softail Slim®

Warranty 24 months (unlimited mileage)
Service Interval First 1,000 miles (1600 km), every 5,000 miles (8,000 km) thereafter