Cruisers
2021BMW R 18
44 fields on record
The 2021 BMW R 18 is a cruiser built for riders seeking classic styling with modern reliability. Its massive 1802cc boxer engine delivers impressive low-end torque of 157.3 Nm, ideal for relaxed, commanding highway cruising. Known for its retro aesthetics and refined engineering, the R 18 appeals to experienced riders wanting a premium, easy-to-live-with cruiser.
- Capacity
- 1802.0 ccm
- Engine
- Boxer, four-stroke
- Gearbox
- 6-speed
- Wet weight
- 345.0 kg
- Seat height
- 691 mm
- Power
- 91.0 HP (66.4 kW) @ 4750 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for cruising and boulevard presence rather than outright speed, prioritizing big-bore torque, classic boxer styling, and relaxed highway pace.
- Built for
- A traditionalist's cruiser with massive low-end torque, a thumping boxer character, and old-school shaft-drive charm over modern sport-touring sophistication.
- Not ideal for
- Not a good fit for riders seeking agile cornering, off-road capability, or sport-bike acceleration.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usRange and running costs
Worked out in your browser - nothing is sent to usBased on the published US (EPA-style) fuel economy estimate and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.
Engine
- Capacity
- 1802.0 ccm
- Power
- 91.0 HP (66.4 kW) @ 4750 RPM
- CO2 Emissions
- 130 CO2 g/km
- EPA Certificate No.
- MBMXC01.8K34-001
- EPA Est. Fuel Consumption
- 5.52 L/100km (42.6 US mpg)
- EPA CO Emissions
- 0.5 CO g/km
- Torque
- 157.3 Nm (16.0 kgf-m) @ 3000 RPM
- Engine type
- Boxer, four-stroke
- Power/weight ratio
- 0.2638 HP/kg (wet)
- Bore x stroke
- 107.1 x 100.0 mm
- Compression
- 9.6:1
- Cooling system
- Oil & air
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- BMS-K+ electronic engine management with overrun cut-off and twin-spark ignition
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 4
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Shaft
- Clutch
- Single-disc dry
Performance
- Top speed
- 178.6 km/h (111.0 mph)
Dimensions & weight
- Wheelbase
- 1731 mm
- Overall length
- 2441 mm
- Overall width
- 965 mm
- Overall height
- 1125 mm
- Seat height
- 691 mm
- Wet weight
- 345.0 kg
- Fuel capacity
- 16.00 litres
- Reserve fuel capacity
- 3.80 litres
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Double-cradle steel
- Front suspension
- Telescopic fork
- Rear suspension
- Steel swingarm with central shock strut
- Front wheel travel
- 119 mm
- Rear wheel travel
- 89 mm
- Rake (fork angle)
- 22.7°
- Trail
- 150 mm
Brakes & wheels
- Front brakes
- Double disc. 4 piston fixed calipers
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. 4 piston fixed calipers
- Front tyre
- 120/70-R19
- Rear tyre
- 180/65-B16
Other
- Color options
- Black
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2021 | 2022 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|
| Capacity | 1802 cc | 1802 cc | 1802 cc | 1802 cc | 1802 cc |
| Seat height | 691 mm | 691 mm | 691 mm | 719 mm | 719 mm |
| Fuel capacity | 16 L | 16 L | 16 L | 16 L | 16 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Safety Recalls
⚠ 1 recall may applyPOWER TRAIN:MANUAL TRANSMISSION:SEALS/GASKETSSep 2024 · 24V716000
BMW of North America, LLC (BMW) is recalling certain 2021-2024 BMW R18 motorcycles. The seal for the reverse gear control unit may deteriorate and allow moisture inside the control unit, which can result in the unit overheating.
Risk: An overheated reverse gear control unit increases the risk of a fire.
Remedy: As an interim remedy, the reverse gear control unit will be disconnected from the electrical system of the motorcycle, free of charge. Dealers will replace the reverse gear control unit, free of charge. Owner notification letters were mailed on April 7, 2025 Owners may contact BMW Customer Service at 1-800-525-7417.
These recalls cover some 2021 bikes of this model. Whether one applies to a specific bike, and whether the repair has already been done, depends on its VIN — check your VIN with NHTSA or ask a dealer.
Source: NHTSA. View all BMW recalls →
Rider Reviews
Common questions
What is the engine size of the BMW R 18?
The 2021 BMW R 18 has a Capacity of 1802.0 ccm (109.96 cubic inches).
What engine power does the BMW R 18 have?
The 2021 BMW R 18 has a Power of 91.0 HP (66.4 kW) @ 4750 RPM.
How many gears does the BMW R 18 have?
The 2021 BMW R 18 has a Gearbox of 6-speed.
What is the torque of the BMW R 18?
The 2021 BMW R 18 has a Torque of 157.3 Nm (16.0 kgf-m or 116.0 ft.lbs) @ 3000 RPM.
How much does the BMW R 18 weigh?
The 2021 BMW R 18 has a Wet weight of 345.0 kg (760.6 pounds).
Shop this bike
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The 2021 BMW R 18 is a stunning addition to the BMW motorcycle lineup. With its classic design and powerful engine, this bike is sure to turn heads on the road. The 1802cc boxer engine delivers an impressive 91 horsepower, providing plenty of oomph for riders who crave speed and performance. The R 18 also boasts modern technology features such as LED lighting, ABS, and three riding modes to cater to different preferences. Overall, the 2021 BMW R 18 is a beautiful and powerful motorcycle that is sure to impress riders and onlookers alike.
If you're in the market for a high-performance and stylish motorcycle, the 2021 BMW R 18 is an excellent choice. Its classic design, powerful engine, and modern technology features make it a standout in the competitive motorcycle market. Whether you're a seasoned rider or a newcomer to the world of motorcycles, the R 18 offers a smooth and exhilarating ride that is sure to satisfy. If you're looking for a bike that combines heritage with cutting-edge engineering, the 2021 BMW R 18 is the motorcycle for you.
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