The 2025 BMW R 18 B is a custom - cruiser motorcycle manufactured by BMW, equipped with a 1802.0 ccm (109.96 cubic inches) displacement unit (Two cylinder boxer, four-stroke) with oil & air cooling. In factory trim, the engine delivers a rated power of 91.0 HP (66.4 kW)) @ 4750 RPM and peak torque of 157.3 Nm (16.0 kgf-m or 116.0 ft.lbs) @ 3000 RPM, paired with a 6-speed transmission and shaft drive (cardan) (final drive) final drive.
For rider ergonomics and real-world handling, key chassis measurements include a curb weight of 397.8 kg (877.0 pounds), seat height of 719 mm (28.3 inches) If adjustable, lowest setting., fuel capacity of 23.85 litres (6.30 US gallons). Review the complete factory specification tables below to evaluate engine internals, suspension travel, braking hardware, tyre sizes and ownership estimates, or compare the 2025 BMW R 18 B side by side against rival models in the Custom - Cruiser lineup.
Engine
Displacement1802.0 ccm (109.96 cubic inches)
Engine TypeTwo cylinder boxer, four-stroke
Engine DetailsTwo chain-driven camshafts above the crank shaft
Power91.0 HP (66.4 kW)) @ 4750 RPM
Torque157.3 Nm (16.0 kgf-m or 116.0 ft.lbs) @ 3000 RPM
Seat Height719 mm (28.3 inches) If adjustable, lowest setting.
Overall Height1400 mm (55.1 inches)
Overall Length2560 mm (100.8 inches)
Overall Width970 mm (38.2 inches)
Fuel Capacity23.85 litres (6.30 US gallons)
Reserve Fuel3.79 litres (1.00 US gallons)
Other
StarterElectric
Color OptionsBlack Storm Metallic, Blackstorm Metallic/ Blacked Out, Mineral Gray Metallic Matte/ Blacked Out, Dragonfire Red Metallic/ Blacked Out, Option 719 Black Pearl
ElectricalPermanent magnet generator 600 W. 12 V / 26 Ah, maintenance-free.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
