Positioning:
The BMW R1100S was positioned as a sport-touring motorcycle with a blend of performance, comfort, and BMW's signature engineering.
Competitors:
Competed with other sport-touring and naked sportbikes of the era, such as the Ducati ST2, Honda VFR800, Yamaha FZ1, and various offerings from Kawasaki and Suzuki.
Engine:
Boxer-twin engine, known for its low center of gravity and smooth power delivery.
Suspension:
BMW's innovative Telelever front suspension and Paralever single-sided swingarm rear suspension, offering excellent ride quality and handling.
Design:
Unique styling with half-fairing, a comfortable riding position for long distances, and a focus on rider ergonomics.
Technology:
Optional ABS II braking system, advanced fuel injection, and robust electrical components.
Engine:
Detailed internal and external engine components, tuning, diagnostics, oil and filter changes, cooling system, fuel injection system, exhaust system.
Transmission:
Gearbox operation, clutch, shift mechanism, lubrication, potential repairs and adjustments.
Drivetrain:
Single-sided swingarm, Paralever drive system, driveshaft, final drive, universal joint, rear wheel hub, maintenance and inspection procedures.
Chassis And Suspension:
Front Telelever suspension, rear Monolever (or similar integrated shock unit), fork overhaul, shock absorber service, wheel bearings, steering head bearings, frame integrity checks.
Brakes:
Full coverage of ABS II (if equipped) and non-ABS braking systems, hydraulic lines, brake fluid flush, caliper service, rotor inspection, brake pad replacement, master cylinder.
Electrical System:
Battery, charging system (alternator, voltage regulator), ignition system (spark plugs, coils, ECU), lighting, starter motor, wiring diagrams, fuses, relays, sensors.
Fuel System:
Fuel pump, fuel injectors, fuel pressure regulator, fuel tank, fuel filter, throttle body assembly, diagnostic procedures for fuel delivery.
Bodywork And Fairings:
Removal and installation of fairings, body panels, seat, fuel tank, handlebars, mirrors, cosmetic repairs.
Diagnostic Troubleshooting:
Systematic fault finding for common issues, error code interpretation (if applicable), diagnostic tools and procedures.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, spark plug changes, brake fluid changes, clutch fluid checks, drive shaft lubrication, valve clearance checks.
Repair:
Detailed step-by-step instructions for a wide range of repairs, from minor adjustments to major component overhauls.
Troubleshooting:
Identification and resolution of common and uncommon problems across all vehicle systems.
Component Replacement:
Instructions for replacing wear items such as brake pads, tires, clutch plates, bearings, seals, and cables.
Rebuilds:
Guidance for complete rebuilds of major components like the engine, gearbox, and suspension units.
Adjustments:
Settings and adjustments for throttle position, clutch cable, idle speed, suspension pre-load, and steering.
Depth:
Comprehensive, covering basic maintenance to full engine and transmission rebuilds, including diagnostic procedures and torque specifications.
Type:
Air/oil-cooled, four-stroke, flat-twin (boxer) engine
Bore X Stroke:
99 mm x 70.5 mm
Compression Ratio:
10.7:1
Valve Train:
2 valves per cylinder, overhead camshaft (OHC), pushrod operated
Horsepower:
Approximately 90 hp (67 kW) at 7,250 rpm
Torque:
Approximately 74 lb-ft (100 Nm) at 5,500 rpm
Induction:
Bosch Motronic 2.2 fuel injection
Fuel Type:
Unleaded gasoline, minimum 95 octane (RON)
Oil Type:
API SG or higher motorcycle-specific engine oil, SAE 20W-50 recommended for most climates.
Oil Capacity:
Approximately 4.0 liters (4.2 US qt) with filter change.
Ignition Type:
Electronic ignition with dual spark plugs per cylinder
Length:
Approximately 2130 mm (83.9 in)
Width:
Approximately 835 mm (32.9 in) at handlebars
Height:
Approximately 1220 mm (48.0 in) at handlebars
Wheelbase:
Approximately 1470 mm (57.9 in)
Dry Weight:
Approximately 208 kg (458.6 lbs)
Wet Weight:
Approximately 237 kg (522.5 lbs)
Gross Vehicle Weight Rating:
Approximately 430 kg (948 lbs)
Fuel Capacity:
23 liters (6.1 US gal), including 4-liter reserve
Crash Test Ratings:
Not typically rated by consumer organizations in the same way as cars. Focus is on structural integrity and rider protection through design.
Braking System:
Optional BMW Motorrad ABS II system, dual front disc brakes, single rear disc brake.
Lighting:
Halogen headlight, LED taillight, turn signals.
Chassis Design:
Sturdy frame construction, integrated fairing for rider protection from elements.
Ergonomics:
Considered ergonomics for rider fatigue reduction on longer rides.
Oil And Filter:
Typically every 10,000 km (6,000 miles) or annually, whichever comes first. Check manual for specific interval.
Valve Clearance:
Every 20,000 km (12,000 miles) or as specified in the manual.
Spark Plugs:
Replacement typically every 20,000 km (12,000 miles), depending on plug type.
Brake Fluid:
Flush and replace every 2 years regardless of mileage.
Clutch Fluid:
Check and top up as needed; flush and replace as per brake fluid or manual recommendation.
Fuel Pump:
Early models could experience fuel pump wear or failure.
Hall Sender:
Hall sender unit failure can cause starting or running issues.
Stator:
Stator failure can lead to charging system problems.
ABS Unit:
ABS II units can sometimes develop electrical faults or require service.
Paralever Splines:
Periodic lubrication of Paralever splines is crucial to prevent seizing or wear.
