Naked Motorcycles

2004BMW R 1150 R Rockster

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The 2004 BMW R 1150 R Rockster is a retro-styled naked bike suited for riders seeking classic aesthetics with modern performance. Its air-oil cooled boxer engine delivers strong torque for everyday riding and highway cruising. Known for distinctive styling and reliable engineering, it appeals to those wanting accessible, characterful motorcycling without complexity.

Capacity: 1130.0 ccm
Engine: Boxer
Gearbox: 6-speed
Dry weight: 219.0 kg
Seat height: 835 mm
Power: 83.8 HP (61.6 kW) @ 6750 RPM

⇄ Compare with another bike All model years

Other years 2004 2005

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail20%

Cornering68%

City riding65%

Daily riding70%

Touring55%

Two-up45%

Track35%

Best for: A muscular, style-focused naked bike meant for spirited street riding and weekend backroad blasts rather than track days or long-haul touring.
Built for: Torquey, distinctive, and mechanically charismatic, with the boxer's low-end pull and shaft drive giving it a relaxed, unmistakable personality rather than razor-sharp aggression.
Not ideal for: Not a good fit for riders seeking off-road capability, a passenger-friendly plush tourer, or cutting-edge outright 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?

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Your height

Inseam (optional)

Units

At 835mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with balls of both feet on the 2004 BMW R 1150 R Rockster, with a relaxed knee angle of around 130 degrees and a forward-leaning 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 821-900 mm — Long Legs →

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Full specifications

Engine

Capacity: 1130.0 ccm
Power: 83.8 HP (61.6 kW) @ 6750 RPM
Torque: 98.0 Nm (10.0 kgf-m)
Engine type: Boxer
Power/weight ratio: 0.3826 HP/kg (dry)
Bore x stroke: 101.0 x 70.5 mm
Compression: 10.3:1
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 clutch, hydraulically operated

Dimensions & weight

Wheelbase: 1486 mm
Overall length: 2170 mm
Overall width: 920 mm
Overall height: 1097 mm
Seat height: 835 mm
Dry weight: 219.0 kg
Wet weight: 239.0 kg
Fuel capacity: 20.50 litres
Reserve fuel capacity: 4.00 litres

Chassis & suspension

Frame: Three-section composite frame consisting of front and rear section, load bearing engine.
Front suspension: BMW Motorrad Telelever; stanchion diameter 35 mm, central strut, rebound damping adjustable
Rear suspension: Die-cast aluminium single-sided swinging arm with BMW Motorrad Paralever; central strut, spring pre-load adjustable to continuously variable levels by means of hydraulic handwheel, rebound damping adjustable
Front wheel travel: 120 mm
Rear wheel travel: 135 mm
Rake (fork angle): 26.9°
Trail: 125 mm