2004 BMW F 650 CS Technical Analysis & Specification Breakdown
Built around BMW's allround motorcycle platform, the 2004 BMW F 650 CS utilizes a 652 cc (39.8 cu in) liquid-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 50 HP (36.5 kW) at 6,500 rpm while maximum torque reaches 60 Nm (44.3 lb-ft) at 4,800 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 76.7 HP per liter and a 1,700 rpm working window between peak torque (4,800 rpm) and peak power (6,500 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the F 650 CS measures 175 kg (386 lbs) dry, translating to a power-to-weight ratio of 0.29 HP/kg (3.5 kg per horsepower). Rider ergonomics and chassis geometry center around a 750 mm (29.5 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,479 mm (58.2 in) wheelbase engineered for balanced agility and highway composure. The 17.3-liter (4.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's BMW archive, this model family spans 3 indexed model years from 2003 to 2005, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
76.7 HP/L
Power-to-Weight
0.29 HP/kg (3.5 kg/HP)
Power Band Window
4,800–6,500 rpm
Standover Height
750 mm (29.5 in)
Engine
Displacement652.0 ccm (39.79 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power50.0 HP (36.5 kW)) @ 6500 RPM
Torque60.0 Nm (6.1 kgf-m or 44.3 ft.lbs) @ 4800 RPM
Compression11.5:1
Bore x Stroke100.0 x 83.0 mm (3.9 x 3.3 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Chassis
Frame TypeBridge-type steel section frame with bolted-on rear section
Rake29.2°
Front SuspensionTelescopic fork, stanchion diameter 41 mm, fork stabiliser, 170 mm travel
Rear SuspensionBox-section steel section dual swing arm, central spring strut action via lever system, spring pre-load hydraulically adjustable to continuously variable levels by means of handwheel, rebound damping adjustable, 165 mm travel
Wheelbase1479 mm (58.2 inches)
Wheels & Brakes
Front Tyre100/90-18
Rear Tyre130/80-17
Front BrakesSingle disc
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Dry Weight175.0 kg (385.8 pounds)
Power/Weight0.2857 HP/kg
Seat Height750 mm (29.5 inches) If adjustable, lowest setting.
Alt. Seat Height820 mm (32.3 inches) If adjustable, highest setting.
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.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
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.
