Market Position R1100R:
A versatile roadster offering a blend of comfort and performance, suitable for commuting and touring. Competed against models like the Ducati Monster and Triumph Bonneville.
Market Position R1100S:
A sportier variant with more aggressive ergonomics and advanced suspension options, targeting riders who desired a more engaging riding experience. Competed against bikes like the Ducati ST series and Honda VFR.
Competitive Advantage:
BMW's boxer engine reliability, shaft drive system, and often advanced braking (ABS) and suspension technologies provided a distinct advantage in the segment.
Key Features R1100:
Flat-twin boxer engine, Telelever front suspension (R1100S standard), Monolever rear suspension, shaft drive, robust build quality
Systems Covered:
Engine, Fuel System, Ignition System, Transmission, Clutch, Drivetrain, Suspension, Braking System, Electrical System, Frame, Bodywork, Wheels, Tires, Maintenance, Troubleshooting, Diagnostics, Specifications, Torque Values, Wiring Diagrams
Page Count:
Estimated 300-400 pages (typical for full service manuals of this era)
Manual Type:
Full Service Repair Manual
Engine Mechanical:
Complete engine overhaul, cylinder head, valves, camshafts, crankshaft, pistons, connecting rods, timing chain, oil pump, lubrication system
Fuel System:
Fuel injection system (EFI), fuel pump, injectors, throttle body, fuel pressure regulator, fuel tank, fuel lines
Ignition System:
Ignition coils, spark plugs, ECU control, timing adjustments
Transmission And Clutch:
Gearbox operation, internal components, clutch assembly (dry single-plate), clutch actuation, gear shift mechanism
Drivetrain:
Single-sided swingarm, driveshaft, final drive, universal joint, bearings
Suspension And Steering:
Front Telelever suspension, rear Monolever suspension, fork seals, shock absorber (Öhlins on R1100S optional), steering head bearings, wheel bearings
Braking System:
Front and rear disc brakes, ABS II (optional), brake lines, master cylinders, calipers, pad replacement, bleeding procedure
Electrical System:
Battery, charging system (alternator, voltage regulator), starter motor, lighting, instrumentation, sensors, ECU, wiring diagrams, fuses, relays
Frame And Bodywork:
Frame structure, fairings, fuel tank, seat, fenders, exhaust system mounting
Maintenance:
Routine checks, oil changes, filter replacements, spark plug changes, valve clearance adjustments, lubrication points, brake fluid flush
Troubleshooting:
Diagnostic charts for common problems, symptom-based troubleshooting guidance
Repair:
Step-by-step instructions for component removal, installation, and repair
Rebuilding:
Comprehensive instructions for engine and transmission rebuilding
Adjustments:
Throttle cable adjustment, clutch lever adjustment, suspension adjustments
Depth:
Extensive, covering basic owner maintenance through to full engine rebuilds and complex electrical diagnostics. Suitable for experienced home mechanics and professional technicians.
Engine 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:
Two valves per cylinder, pushrod actuated overhead camshafts (OHV)
Horsepower R1100R:
Approx. 90 HP @ 7,250 rpm
Horsepower R1100S:
Approx. 98 HP @ 7,500 rpm
Torque R1100R:
Approx. 98 Nm (72 lb-ft) @ 5,250 rpm
Torque R1100S:
Approx. 97 Nm (72 lb-ft) @ 5,750 rpm
Fuel Delivery:
Bosch Motronic 2.2 Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON+MON)/2
Oil Change Interval:
Every 10,000 km (6,000 miles) or annually
Filter Replacement Interval:
Oil filter with every oil change; Air filter every 20,000 km (12,000 miles)
Valve Clearance Check:
Every 10,000 km (6,000 miles)
Brake Fluid Change:
Every 2 years
Engine Oil Type:
SAE 20W-50 API SG or higher (e.g., BMW Motorrad ADVANTEC Ultimate 20W-50 or equivalent)
Engine Oil Capacity:
Approx. 4 liters (4.2 US quarts) with filter change
Transmission Oil Type:
SAE 75W-90 API GL-5 (e.g., BMW ESAFLUID)
Transmission Oil Capacity:
Approx. 0.4 liters (0.42 US quarts)
Final Drive Oil Type:
SAE 80W-90 API GL-5 (e.g., BMW ESAFLUID)
Final Drive Oil Capacity:
Approx. 0.25 liters (0.26 US quarts)
Brake Fluid Type:
DOT 4 (or DOT 3 if specified for older systems, but DOT 4 is preferred for ABS systems)
Common Issues:
Hall sender failure, fuel pump issues, output shaft seal leaks, starter motor solenoid problems, aging wiring harnesses, rear shock absorber degradation (especially aftermarket).
Brand Heritage:
BMW Motorrad has a long-standing history of producing high-quality, innovative motorcycles, known for their engineering prowess and touring capabilities.
Model Evolution R1100:
The R1100 series represented a significant evolution from the older R100 models, introducing the 4-valve per cylinder engine (though earlier R1100 models had 2 valves, the R1100 R/S featured an updated 2-valve head with a focus on torque), fuel injection, and modern chassis designs like Telelever suspension. It was part of BMW's transition to more technologically advanced motorcycles.
Production Years R1100R:
1993-2000
Production Years R1100S:
1998-2005
Manufacturing Location:
Berlin, Germany