2025 BMW R 12G/S vs 2023 Harley-Davidson Fat Boy 114

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles
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
2023 Harley-Davidson Fat Boy 114 2023 Harley-Davidson Fat Boy 114

Custom / cruiser

Engine
V2, four-stroke
Power
N/A
Top Speed
N/A
Weight
699.0 pounds
Full Specifications
General
Comments-Security system. Cruise control.
Year2025-
Colours-Vivid Black, Bright Billiard Blue, Gray Haze/Silver Fortune, Heirloom Red Fade
Make ModelBMW R 12G/S-
Dimensions
Wheelbase (mm)-1666 mm
Wheelbase (in.)-65.6 inches
Seat Height (mm)-658 mm
Seat Height (in.)-25.9 inches
Length (in.)-93.3 inches
Length (mm)-2370 mm
Ground Clearance (in.)-4.5 inches
Ground Clearance (mm)-114 mm
Seat Height860 mm / 33.9 in (875 mm / 34.4 in Enduro Package)658 mm / 25.9 in.
Wheelbase1580 mm / 62.2 in (1585 / 62.4 in Enduro Package)1666 mm / 65.6 in.
Length2200 mm / 86.6 in2370 mm / 93.3 in.
Width830 mm / 32.7 in-
Weights & Capacities
Dry Weight (kg)-304.4
Wet Weight (lbs.)-699.0 pounds
Fuel Capacity (l)-18.93 litres
Fuel Capacity (gal.)-5.00 US gallons
Dry Weight (lbs.)-671.0 pounds
Oil Capacity (Quarts)-4.97 US quarts
Oil Capacity (l)-4.70 litres
Wet Weight (kg)229 317.1 kg
Dry Weight-304.4 kg / 671.0 lbs
Fuel Capacity15.5 Litres / 4.1 US gal18.93 litres / 5.00 US gallons
Wet Weight229 kg / 505 lbs317.1 kg / 699.0 lbs
Performance
Max Power81 kW / 109 hp @ 7000 rpm-
Max Torque115 Nm / 81 lb-ft @ 6500 rpm161.4 Nm (16.5 kgf-m or 119.0 ft.lbs) @ 3000 Revolutions"
Power-to-Weight Ratio-0.3088 HP/kg
Engine
CO2-116.0 CO2 g/km. (CO2 - Carbon dioxide emission)
Displacement (cc)-1868.0 cc
Displacement (ci)-113.99 cubic inches
Engine Type-V2, four-stroke
Fuel Control-Double Overhead Cams/Twin Cam (DOHC)
Bore x Stroke (in,)-4.0 x 4.5 inches
Bore x Stroke (mm)-102.0 x 114.0 mm
Displacement1170 cc / 71.4 cub in-
Engine DetailFour stroke, two cylinder horizontally opposed Boxer, with four camshaft-operated valves and two overhead camshafts per cylinder.Milwaukee-Eight® 114
Fuel System-Injection. Electronic Sequential Port Fuel Injection
Bore x Stroke101 x 73 mm-
Compression Ratio12:110.5:1
Cooling SystemAir/oil cooled-
EmissionsControlled 3-way catalytic converter, exhaust emission standards EU-5+-
Exhaust-2-into-2 staggered, catalyst in muffler
Fuel Consumption-5.00 litres/100 km (20.0 km/l or 47.04 mpg)
Fuel InductionElectronic intake pipe injection / digital engine management system: BMS-O with throttle-by-wire-
Fuel TypeUnleaded super (premium), octane number 95-98 (RON) (rated output at 98 RON)-
LubricationWet sump-
StarterElectricElectric
Drivetrain
ClutchSingle dry plate clutch, hydraulically operatedMulti-plate with diaphragm spring in oil bath
Final DriveUniversal shaftBelt   (final drive)
Gear Ratios1st = 2.375, 2nd = 1.696, 3rd = 1.296, 4th = 1.065, 5th = 0.939, 6th = 0.848-
Gearbox-6-speed
Primary Drive-34/46 ratio primary
Primary Drive Ratios1.737-
Transmission / Drive6-Speed, claw-shifted transmission with separate transmission housing-
Chassis
Trail (mm)-104 mm
Trail (in.)-4.1 inches
Frame TypeFour-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 - Front45 mm USD telescopic forks, spring base, rebound and compression damping adjustableDual-bending valve 49 mm telescopic with aluminum fork triple clamps; dual rate spring; ´beer can´ covers
Suspension - RearAluminum Paralever swinging arm, directly linked WAD spring strut, spring base, rebound and compression damping adjustableHidden, free piston, coil-over monoshock; 43mm stroke; toolless hydraulic preload adjustment
Rake-30.0°
Steering Head Angle63.1° (63.2° Enduro Package)-
Trail120.8 mm / 4.76 in (121.3 / 4.76 Enduro Package)104 mm / 4.1 in.
Wheel Travel - Front210 mm / 8.3 in -
Wheel Travel - Rear200 mm / 7.9 in-
Electrical Systems
Instrumentation-5-inch analog speedometer with digital gear, odometer, fuel level, clock, trip, range and tachometer indication
Lighting system-All LED
Wheels & Brakes
Brakes - Front2 x 310mm disc brake, with two axially bolted 2-piston floating calipersDouble disc. Optional ABS. 4-piston.
Brakes - RearSingle 265 mm disc, 2 piston floating caliperSingle disc. Optional ABS. 2-piston.
ABSBMW Motorrad ABS Pro (lean angle optimised)-
Rims-Machined, Lakester cast aluminum wheels. Michelin® Scorcher® ´11´ tires.
Rims - Front2.15 x 21-
Rims - Rear4.0 x 17 (4.0 x 18 Enduro Package)-
Tyres - Front90/90/21160/60-R18
Tyres - Rear150/70 - R17 (150/70 - R18 Enduro Package)-
WheelsAluminium cross-spoke wheels-