2015 Harley-Davidson Sportster Forty-Eight vs 2025 BMW R 12G/S

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles
2015 Harley-Davidson Sportster Forty-Eight 2015 Harley-Davidson Sportster Forty-Eight

Custom / cruiser

Engine
V2, four-stroke
Power
N/A
Top Speed
N/A
Weight
573.0 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
ColoursHard Candy Big Red Flake, Hard Candy Cancun Blue Flake, Vivid Black, Amber Whiskey, Charcoal Pearl-
Make Model-BMW R 12G/S
Dimensions
Wheelbase (in.)59.8 inches-
Seat Height (mm)660 mm-
Seat Height (in.)26.0 inches-
Length (mm)2,250 mm-
Length (in.)88.6 inches-
Ground Clearance (mm)99 mm-
Ground Clearance (in.)3.9 inches-
Wheelbase (mm)1,519 mm-
Seat Height660 mm / 26.0 in.860 mm / 33.9 in (875 mm / 34.4 in Enduro Package)
Wheelbase1,519 mm / 59.8 in.1580 mm / 62.2 in (1585 / 62.4 in Enduro Package)
Length2,250 mm / 88.6 in.2200 mm / 86.6 in
Width-830 mm / 32.7 in
Weights & Capacities
Fuel Capacity (l)7.90 litres-
Fuel Capacity (gal.)2.09 gallons-
Oil Capacity (Quarts)0.17 quarts-
Dry Weight (kg)250.8-
Oil Capacity (l)2.60 litres-
Wet Weight (kg)259.9 kg229
Wet Weight (lbs.)573.0 pounds-
Dry Weight (lbs.)553.0 pounds-
Dry Weight250.8 kg / 553.0 lbs-
Fuel Capacity7.90 litres / 2.09 gallons15.5 Litres / 4.1 US gal
Wet Weight259.9 kg / 573.0 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) @ 5750 Revolutions115 Nm / 81 lb-ft @ 6500 rpm
Power-to-Weight Ratio0.2673 HP/kg-
Engine
Bore x Stroke (in,)3.5 x 3.8 inches-
Bore x Stroke (mm)88.9 x 96.8 mm-
CO2113.7 CO2 g/km. (CO2 - Carbon dioxide emission)-
Engine TypeV2, four-stroke-
Displacement-1170 cc / 71.4 cub in
Engine DetailAir-cooled, Evolution®Four stroke, two cylinder horizontally opposed Boxer, with four camshaft-operated valves and two overhead camshafts per cylinder.
Fuel SystemInjection. Electronic Sequential Port Fuel Injection (ESPFI)-
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 Consumption4.90 litres/100 km (20.4 km/l or 48.00 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)107 mm-
Trail (in.)4.2 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 - Front-45 mm USD telescopic forks, spring base, rebound and compression damping adjustable
Suspension - Rear-Aluminum Paralever swinging arm, directly linked WAD spring strut, spring base, rebound and compression damping adjustable
Steering Head Angle-63.1° (63.2° Enduro Package)
Trail107 mm / 4.2 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, Laced Steel-
Rims - Front-2.15 x 21
Rims - Rear-4.0 x 17 (4.0 x 18 Enduro Package)
Tyres - Front150/80-1690/90/21
Tyres - Rear150/80-B16150/70 - R17 (150/70 - R18 Enduro Package)
Wheels-Aluminium cross-spoke wheels