2005BMW R 1100 S

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The 2005 BMW R 1100 S is a sport-touring boxer that appeals to riders seeking comfort with spirited performance. Its 1085cc twin-cylinder engine delivers smooth power and excellent torque for highway cruising and canyon carving alike. Known for reliability, handling balance, and that distinctive BMW boxer character, it remains a favorite among experienced sport-touring enthusiasts.

Capacity: 1085.0 ccm
Engine: Boxer, four-stroke
Gearbox: 6-speed
Dry weight: 208.0 kg
Seat height: 800 mm
Power: 96.6 HP (71.0 kW)

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What’s new for the 2005 BMW R 1100 S

vs the 2004

Spec	2004	2005
Seat height	860 mm (33.9 inches)	800 mm (31.5 inches)
Front suspension	BMW Motorrad Telelever; stanchion diameter 35 mm, central spring strut, rebound damping adjustable	BMW Motorrad Telelever
Rear suspension	Die-cast aluminium single-sided swing arm with BMW Motorrad Paralever; central spring strut, spring pre-load hydraulically adjustable to continuously variable levels by means of handwheel, rebound damping adjustable	Die-cast aluminium single-sided swinging arm with BMW Motorrad Paralever

Other years 1999 2000 2001 2002 2003 2004 2005

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail15%

Cornering72%

City riding45%

Daily riding60%

Touring72%

Two-up55%

Track55%

Best for: Designed as a sport tourer, blending brisk boxer-twin performance with long-distance comfort and shaft-drive practicality.
Built for: A quirky, characterful machine with torque-rich boxer power delivery, Telelever front suspension feel, and sporty yet composed road manners.
Not ideal for: Not a good fit for off-road adventures or riders seeking a lightweight, flickable city commuter.

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 800mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2005 BMW R 1100 S, with a cramped knee angle of around 85 degrees and a slightly forward 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 751-820 mm — Middle Ground →

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Full specifications

Engine

Capacity: 1085.0 ccm
Power: 96.6 HP (71.0 kW)
Torque: 97.0 Nm (9.9 kgf-m)
Engine type: Boxer, four-stroke
Power/weight ratio: 0.4644 HP/kg (dry)
Bore x stroke: 99.0 x 70.5 mm
Compression: 11.3:1
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: 1478 mm
Overall length: 2180 mm
Overall width: 880 mm
Overall height: 1160 mm
Seat height: 800 mm
Dry weight: 208.0 kg
Wet weight: 229.0 kg
Fuel capacity: 18.00 litres

Chassis & suspension

Frame: Three-section composite frame consisting of front and rear section, load bearing engine.
Front suspension: BMW Motorrad Telelever
Rear suspension: Die-cast aluminium single-sided swinging arm with BMW Motorrad Paralever
Front wheel travel: 110 mm
Rear wheel travel: 130 mm
Rake (fork angle): 25.0°
Trail: 100 mm

Brakes & wheels

Front brakes: Double disc
Front brakes diameter: 305 mm
Rear brakes: Double disc
Rear brakes diameter: 276 mm
Front tyre: 120/70-ZR17
Rear tyre: 170/60-ZR17

Specs last verified against published sources: October 2026.

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	1999	2001	2002	2004	2005
Capacity	1085 cc	1085 cc	1085 cc	1085 cc	1085 cc
Dry weight	208 kg	—	—	208 kg	208 kg
Seat height	800 mm	800 mm	800 mm	860 mm	800 mm
Fuel capacity	18 L	18 L	18 L	18 L	18 L