2018 Harley-Davidson Sportster Forty-Eight vs 2025 BMW R 12G/S

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles
2018 Harley-Davidson Sportster Forty-Eight 2018 Harley-Davidson Sportster Forty-Eight

Custom / cruiser

Engine
V2, four-stroke
Power
N/A
Top Speed
N/A
Weight
555.6 pounds
2025 BMW R 12G/S 2025 BMW R 12G/S

Custom / cruiser

Engine
Four stroke, two cylinder horizontally opposed Boxer, with four camshaft-operated valves and two overhead camshafts per cylinder.
Power
81 kW / 109 hp @ 7000 rpm
Top Speed
N/A
Weight
229 kg / 505 lbs
Full Specifications
General
Year-2025
ColoursVivid Black, Red Iron Denim, Hard Candy Shattered Flake, Legend Blue Denim-
Make Model-BMW R 12G/S
Dimensions
Wheelbase (in.)58.9 inches-
Seat Height (mm)710 mm-
Seat Height (in.)28.0 inches-
Length (mm)2,210 mm-
Length (in.)87.0 inches-
Ground Clearance (mm)110 mm-
Ground Clearance (in.)4.3 inches-
Wheelbase (mm)1,495 mm-
Seat Height710 mm / 28.0 in.860 mm / 33.9 in (875 mm / 34.4 in Enduro Package)
Wheelbase1,495 mm / 58.9 in.1580 mm / 62.2 in (1585 / 62.4 in Enduro Package)
Length2,210 mm / 87.0 in.2200 mm / 86.6 in
Width-830 mm / 32.7 in
Weights & Capacities
Dry Weight (kg)247-
Dry Weight (lbs.)544.5 pounds-
Oil Capacity (Quarts)0.17 quarts-
Fuel Capacity (l)7.90 litres-
Oil Capacity (l)2.60 litres-
Wet Weight (kg)252.0 kg229
Wet Weight (lbs.)555.6 pounds-
Fuel Capacity (gal.)2.09 gallons-
Dry Weight247 kg / 544.5 lbs-
Fuel Capacity7.90 litres / 2.09 gallons15.5 Litres / 4.1 US gal
Wet Weight252.0 kg / 555.6 lbs229 kg / 505 lbs
Performance
Max Power-81 kW / 109 hp @ 7000 rpm
Max Torque96.00 Nm (9.8 kgf-m or 70.8 ft.lbs) @ 3500 Revolutions115 Nm / 81 lb-ft @ 6500 rpm
Power-to-Weight Ratio0.2632 HP/kg-
Engine
Bore x Stroke (in,)3.5 x 3.8 inches-
Bore x Stroke (mm)88.9 x 96.8 mm-
CO2120.6 CO2 g/km. (CO2 - Carbon dioxide emission)-
Engine TypeV2, four-stroke-
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)-
Displacement-1170 cc / 71.4 cub in
Engine DetailEvolution® engineFour stroke, two cylinder horizontally opposed Boxer, with four camshaft-operated valves and two overhead camshafts per cylinder.
Fuel SystemInjection. Electronic Sequential Port Fuel Injection-
Bore x Stroke-101 x 73 mm
Compression Ratio9.7:112:1
Cooling System-Air/oil cooled
Emissions-Controlled 3-way catalytic converter, exhaust emission standards EU-5+
Engine LubricationDry sump-
ExhaustChrome, staggered shorty exhaust with dual slash-cut mufflers-
Fuel Consumption5.20 litres/100 km (19.2 km/l or 45.23 mpg)-
Fuel Induction-Electronic intake pipe injection / digital engine management system: BMS-O with throttle-by-wire
Fuel Type-Unleaded super (premium), octane number 95-98 (RON) (rated output at 98 RON)
Lubrication-Wet sump
StarterElectricElectric
Drivetrain
ClutchMulti-plate with diaphragm spring in oil bathSingle dry plate clutch, hydraulically operated
Final DriveBeltUniversal shaft
Gear Ratios-1st = 2.375, 2nd = 1.696, 3rd = 1.296, 4th = 1.065, 5th = 0.939, 6th = 0.848
Gearbox6-speed-
Primary Drive57/38 ratio-
Primary Drive Ratios-1.737
Transmission / Drive-6-Speed, claw-shifted transmission with separate transmission housing
Chassis
Trail (mm)135 mm-
Trail (in.)5.3 inches-
Frame Type-Four-part frame concept with front frame and three-part rear frame, load-bearing engine-gearbox unit, rear-seat frame removeable for one-up riding
Suspension - FrontTelescopic fork45 mm USD telescopic forks, spring base, rebound and compression damping adjustable
Suspension - RearTwin shocksAluminum Paralever swinging arm, directly linked WAD spring strut, spring base, rebound and compression damping adjustable
Rake30.2°-
Steering Head Angle-63.1° (63.2° Enduro Package)
Trail135 mm / 5.3 in.120.8 mm / 4.76 in (121.3 / 4.76 Enduro Package)
Wheel Travel - Front-210 mm / 8.3 in
Wheel Travel - Rear-200 mm / 7.9 in
Electrical Systems
Instrumentation4-inch Speedometer mounted low and integrated into handlebar clamp electronic speedometer with odometer, time-of-day clock on odometer, dual tripmeter, LED indicator lights-
Lighting systemHigh beam, neutral, low oil pressure, turn signals, engine diagnostics, low fuel warning, low battery, security system (optional)-
Wheels & Brakes
Brakes - FrontSingle disc. Dual-piston. Optional ABS.2 x 310mm disc brake, with two axially bolted 2-piston floating calipers
Brakes - RearSingle disc. Single-piston. Optional ABS.Single 265 mm disc, 2 piston floating caliper
ABS-BMW Motorrad ABS Pro (lean angle optimised)
RimsBlack, Split 9-Spoke Cast Aluminum w/ Machined Highlights-
Rims - Front-2.15 x 21
Rims - Rear-4.0 x 17 (4.0 x 18 Enduro Package)
Tyres - Front130/90-B1690/90/21
Tyres - Rear150/80-B16150/70 - R17 (150/70 - R18 Enduro Package)
Wheels-Aluminium cross-spoke wheels