Cruisers

2026BMW R 18 Roctane

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The 2026 BMW R 18 Roctane is a custom cruiser designed for riders seeking classic styling with modern reliability. Its massive 1802cc boxer engine delivers strong low-end torque ideal for relaxed riding, while the distinctive flat-twin design defines its timeless character. Best known for combining retro aesthetics with contemporary technology and comfort.

Capacity: 1802.0 ccm
Engine: Boxer, four-stroke
Gearbox: 6-speed
Dry weight: 374.2 kg
Seat height: 719 mm
Power: 91.0 HP (66.4 kW) @ 4750 RPM

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Other years 2025 2026

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail10%

Cornering35%

City riding40%

Daily riding60%

Touring62%

Two-up55%

Track15%

Best for: Built for boulevard cruising and long, relaxed highway stretches with big-twin torque rather than for outright speed or sharp cornering.
Built for: A loud, torque-rich boxer cruiser with strong presence, classic styling, and a shaft-driven drivetrain that rewards a laid-back, throttle-roll-on riding style.
Not ideal for: Not a good fit for new riders, those seeking agile flickable handling, or anyone planning to take it off-road.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 719mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2026 BMW R 18 Roctane, with a cramped knee angle of around 80 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 750 mm or under — Short Kings →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 1802.0 ccm
Power: 91.0 HP (66.4 kW) @ 4750 RPM
Torque: 162.7 Nm (16.6 kgf-m) @ 3000 RPM
Engine type: Boxer, four-stroke
Power/weight ratio: 0.2432 HP/kg (dry)
Bore x stroke: 107.1 x 100.0 mm
Compression: 9.6:1
Cooling system: Oil & air
Fuel system: Injection
Starting: Electric
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: 1720 mm
Overall length: 2286 mm
Overall width: 983 mm
Overall height: 1397 mm
Seat height: 719 mm
Dry weight: 374.2 kg
Fuel capacity: 16.00 litres
Reserve fuel capacity: 3.80 litres

Chassis & suspension

Frame: Double loop steel frame with bolted beams
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): 32.7°
Trail: 150 mm

Brakes & wheels

Front brakes: Double disc. 4 piston fixed calipers, BMW Motorrad Integral ABS (partially integral)
Rear brakes: Single disc. Single disc brake, fixed caliper. BMW Motorrad Integral ABS.
ABS: Yes
Front tyre: 120/70-21
Rear tyre: 180/65-B18