The BMW R 80GS of 1990-91 embodies the perfect blend of performance and practicality, offering a unique riding experience that defies categorization. Its 799cc parallel-twin engine, boasting increased displacement, unleashes a thrilling surge of power from idle speeds, delivering exceptional low-end torque and smooth acceleration. The updated chassis, equipped with WP suspension, provides exceptional comfort and stability, effortlessly absorbing road imperfections and ensuring a secure ride, whether solo or with a pillion.
The R 80GS’s thoughtful design and engineering result in a remarkably simple yet effective package, with inspections reduced to mere routine tasks. Regular maintenance, such as valve clearance checks, is essential to prevent engine roughness and performance losses. When properly maintained, this rugged motorcycle delivers class-leading comfort and agility, making it an exceptional choice for riders seeking a reliable and engaging on-road experience.
Key Specifications
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder
Engine Capacity
797.5 cc / 48.7 cu in.
Max Power
37 kw / 50 hp
Max Torque
61Nm / 6.2 kgf-m / 44 ft lb @ 5000 rpm
Top Speed
Fuel Tank Capacity
24L / 6.3 US gal
Weight (Wet/Kerb)
462 lbs / 210 kg
Seat Height
33.5 inches / 850 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
BMW R 80GS
Year
1990 – 91
Engine
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder
The BMW R 100GS is a benchmark for large-capacity trail bikes, boasting a reputation as one of the longest-lived models in its niche.
Its Boxer twin engine, with a 992cc displacement and 80-hp output, provides a unique riding experience that’s both rugged and refined.
The Paralever suspension system offers adjustable preload, rebound damping, and compression, ensuring a smooth ride even on the most challenging terrain.
With a seat height of 34.6 inches, the R 100GS is accessible to a wide range of riders, making it an ideal choice for those seeking a capable and versatile trail bike.
Key Specifications
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
Engine Capacity
980 cc / 59.8 cu in.
Max Power
44 kw / 60 hp
Max Torque
76 Nm / 7.75 kgf-m / 56 ft-lb @ 3750 rpm
Top Speed
Fuel Tank Capacity
24 L / 6.3 US gal
Weight (Wet/Kerb)
462 lbs / 210 kg
Seat Height
33.5 inches / 850 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
BMW R 100GS
Year
1991- 92
Engine
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
The BMW K100RS 16V and SE models for 1991 and 1992 represent a significant leap forward in sport touring motorcycles. With its updated 16-valve engine, the K100RS now boasts an impressive 100 horsepower, delivering a more thrilling riding experience. The 16-valve engine provides a wider power band, making the bike more responsive and agile, particularly during rapid acceleration and deceleration. The addition of a higher compression ratio and revised ignition system further enhances performance, while the updated fuel injection system ensures optimal engine management.
The K100RS 16V and SE models also feature a range of comfort and convenience upgrades, including revised ergonomics, improved seating, and enhanced rider visibility. The result is a more refined and enjoyable ride, making the K100RS an ideal choice for both touring and sport touring enthusiasts.
The K100RS 16V and SE models set a new standard in sport touring motorcycles, offering exceptional performance, comfort, and style.
Key Specifications
Engine Type
Four stroke, horizontal in line four cylinder, DOHC, 4 valves per cylinder
Engine Capacity
987 cc / 60.2 cub-in
Max Power
70 kw / 95 hp
Max Torque
86 Nm / 8.8 kgf-m / 63 ft-lb @ 6000 rpm
Top Speed
Fuel Tank Capacity
5.2 US gallons / 19.7 L
Weight (Wet/Kerb)
579 lbs / 263 kg
Seat Height
31.50 inches / 800 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
BMW K100RS 16V and SE model
Year
1991 – 92
Engine
Engine Type
Four stroke, horizontal in line four cylinder, DOHC, 4 valves per cylinder
Displacement
987 cc / 60.2 cub-in
Bore x Stroke
67 x 70 mm
Compression Ratio
11.0:1
Number of Cylinders
Max Horsepower
70 kw / 95 hp
Max Torque
86 Nm / 8.8 kgf-m / 63 ft-lb @ 6000 rpm
Valve Train
Valves per Cylinder
Ø intake / exhaust valve dia
Ø throttle valve
Engine Management System
Bosch Motronic combined ignition/fuel injection system
The BMW K1, a revolutionary super sports bike, unveiled in 1991 as the German manufacturer’s flagship model. Riding the K1 in the picturesque Frascati countryside around Rome, I was struck by its unique blend of curves and angular lines, a design that would likely polarize opinions, much like the Ford Sierra upon its introduction.
The K1’s engine, a 1,000cc inline-four, delivered a potent combination of power and refinement, making it an exhilarating ride on the winding roads of Italy. Its smooth, linear power delivery and responsive throttle made it a delight to ride, while its handling was characterized by a precise, agile feel.
The K1’s design, though polarizing, is a bold statement from BMW, showcasing the brand’s willingness to push boundaries and challenge conventional motorcycle design. With its striking color schemes and high-visibility decals, the K1 is an unmistakable presence on the road. And as I rode this incredible machine, one thing became clear: the BMW K1 is a true masterpiece of engineering and design.
Key Specifications
Engine Type
Four-stroke, horizontal in line four cylinder, DOHC, 4 valves per cylinder
Engine Capacity
987 cc / 60.2 cu in
Max Power
72.9 kw / 100 hp
Max Torque
100 Nm / 10.2 kgf-m / 74 ft lb @ 6750 rpm
Top Speed
Fuel Tank Capacity
22 L/ 5.8 US gal
Weight (Wet/Kerb)
Seat Height
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
BMW K1
Year
1991 – 92
Engine
Engine Type
Four-stroke, horizontal in line four cylinder, DOHC, 4 valves per cylinder
Displacement
987 cc / 60.2 cu in
Bore x Stroke
67 x 70 mm
Compression Ratio
11.0:1
Number of Cylinders
Max Horsepower
72.9 kw / 100 hp
Max Torque
100 Nm / 10.2 kgf-m / 74 ft lb @ 6750 rpm
Valve Train
Valves per Cylinder
Ø intake / exhaust valve dia
Ø throttle valve
Engine Management System
Electronic injection, Bosch Motronic
Fuel-mixture System
Lubrication System
Cooling System
Liquid cooled
Ignition System
Fuel
Exhaust
Emissions Compliance
Performance
Top Speed
240.4 km/h / 149.4 mph
Acceleration (0-100 km/h, 0-60 mph)
Fuel Consumption
Range
*n/a – information not provided by manufacturer
Transmission
Clutch
Gearbox
5 Speed
Primary Drive Ratio
Secondary Drive Ratio
Gear Ratios
Final Drive
Shaft
Quick Shifter
Traction Control System
Assist & Slipper Clutch
Electrical & Electronics System
Battery
Alternator/Generator
Starter
Electric
Headlight Type
Taillight Type
Instrumentation
Connectivity
Riding Modes
Traction Control System
Launch Control
ABS
Cruise Control
Chassis & Suspension
Frame Type
Front Suspension
Telescopic fork with hydraulic shock absorber
Front Suspension Travel
Rear Suspension
Monolayer swinging arm
Rear Suspension Travel
Rake
Trail
Rear Subframe
Swingarm
Handlebar
Steering Damper
Wheels & Brakes
Wheels
Front Wheel/Rim Size
Front Tire Size
120/70 ZR17
Rear Wheel/Rim Size
Rear Tire Size
160/60 ZR18
Front Brakes
2 x 305mm discs, 4 piston calipers
Rear Brakes
Single 285mm disc, 1 piston caliper
ABS
Dimension & Weights
Overall Length
Overall Width
Overall Height
Seat Height
Wheelbase
Ground Clearance
Fuel Tank Capacity
22 L/ 5.8 US gal
Wet (kerb/curb) Weight
Dry Weight
Max Load Capacity
Features
Curvaceous design with angular individual parts
18-inch high decals spelling out “K1”
“Marrakesh” red or “Lagoon” blue bodywork
Shocking yellow suspension
Box sections in the tail for storage and indicator mounts
Wide handlebars for low-speed maneuverability
Poor full lock on the handlebars
Requires a two-point turn for normal-width road turns
100 horsepower engine
Restricted to 100 horsepower for sale in Germany
BMW’s first “super sports bike” and new flagship model
Features a unique design that was initially met with criticism
Has storage pockets in the tail
Indicator mounts integrated into the tail box sections
The BMW R 80GS is a stalwart of the adventure touring scene, boasting a unique blend of character and capability. With a robust 798cc parallel-twin engine, this bike exudes a distinct personality that sets it apart from its competitors. Its riding experience is a harmonious balance of comfort and agility, making it an ideal choice for long-distance travel. The bike’s handling is precise and responsive, while its engine provides a satisfying growl that’s music to the ears. Whether tackling twisty mountain roads or cruising down the highway, the R 80GS is a trusted companion that will never let you down.
Key Specifications
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder
Engine Capacity
797.5 cc / 48.7 cu in.
Max Power
37 kw / 50 hp
Max Torque
61Nm / 6.2 kgf-m / 44 ft lb @ 5000 rpm
Top Speed
Fuel Tank Capacity
24L / 6.3 US gal
Weight (Wet/Kerb)
462 lbs / 210 kg
Seat Height
33.5 inches / 850 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
BMW R 80GS
Year
1992 – 94
Engine
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder
The BMW R 100RT Mono, a testament to the marque’s commitment to its loyal followers, rekindles the 1000cc Boxer spirit that many thought had been extinguished in 1985. Two constant depression carburetors, a Bing 94/40/105-106 system, breathe life into the 980cc engine, which delivers a broad, smooth powerband that’s as much about torque as it is about peak horsepower.
Riding the RT is an exercise in refinement, with the engine pulling hard from just off idle and displaying a strong presence in the 3000-5000 rpm range. While it may fade slightly near its 7000 rpm redline, it provides more than enough oomph for accelerating and cruising at speeds up to 105 mph.
The RT’s engine character is its greatest charm, and it’s a shame that it may not entice new riders into the BMW Twins camp. However, for the faithful, this motorcycle offers a truly satisfying experience that’s as much about the ride as it is about the machine.
Key Specifications
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
Engine Capacity
980 cc 59.8 cu in
Max Power
43.7 kw / 60 hp
Max Torque
74 Nm / 7.5 kgf-m / 54.6 ft-lb @ 6000 rpm
Top Speed
Fuel Tank Capacity
6.3 US gallons / 24.0 L
Weight (Wet/Kerb)
525 lbs / 238 kg
Seat Height
32.3 inches / 820 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
BMW R 100RT Mono
Year
1990 – 94
Engine
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
Displacement
980 cc 59.8 cu in
Bore x Stroke
94 x 70.6 mm
Compression Ratio
8.45:1
Number of Cylinders
Max Horsepower
43.7 kw / 60 hp
Max Torque
74 Nm / 7.5 kgf-m / 54.6 ft-lb @ 6000 rpm
Valve Train
Valves per Cylinder
Ø intake / exhaust valve dia
Ø throttle valve
Engine Management System
2 x Constant depression carburettors, Bing 94/40/105 – 94/40/106
The BMW R 100RS Mono is a testament to the company’s commitment to building uncompromising motorcycles that defy categorization. Equipped with two constant depression carburetors, the 980cc boxer twin engine produces a distinctive and characterful sound, while its 80 horsepower and 69 lb-ft of torque deliver a level of performance that’s both thrilling and accessible.
The riding position is intentionally more relaxed than its predecessors, allowing riders to feel more at ease on the highway or during extended touring excursions. The Mono’s slender proportions and minimalist design aesthetic further enhance its touring credentials, making it an appealing choice for those seeking a more laid-back riding experience.
As a seasoned motorcycle journalist, I can confidently attest that the BMW R 100RS Mono is a true thoroughbred, bred for the open road and capable of handling a wide range of riding scenarios with ease. Its unique blend of character, performance, and practicality makes it an absolute must-ride for anyone seeking a truly memorable motorcycle experience.
Key Specifications
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
Engine Capacity
980 cc / 59.8 cub in.
Max Power
43.8 kw / 59.5 hp
Max Torque
74Nm/ 7.55 kg-m/ 54.6 lb-ft @3500rpm
Top Speed
Fuel Tank Capacity
5.8 US gallons / 22.0 L
Weight (Wet/Kerb)
485 lbs / 220 kg
Seat Height
32.3 inches / 820 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
BMW R 100RS Mono
Year
1990 – 93
Engine
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
Displacement
980 cc / 59.8 cub in.
Bore x Stroke
94 x 70.6 mm
Compression Ratio
8.45:1
Number of Cylinders
Max Horsepower
43.8 kw / 59.5 hp
Max Torque
74Nm/ 7.55 kg-m/ 54.6 lb-ft @3500rpm
Valve Train
Valves per Cylinder
Ø intake / exhaust valve dia
Ø throttle valve
Engine Management System
2 x Constant depression carburettors, Bing 94/40/105 – 94/40/106
Fuel-mixture System
Lubrication System
Wet sump
Cooling System
Air cooled
Ignition System
Fuel
Exhaust
Emissions Compliance
Performance
Top Speed
188.8 km/h / 117.3 mph
Acceleration (0-100 km/h, 0-60 mph)
Fuel Consumption
Range
*n/a – information not provided by manufacturer
Transmission
Clutch
Dry single plate, with lever action diaphragm spring
The BMW R 100GS is a paragon of adventure motorcycles, its Paralever adjustable preload and rebound damping compression ensuring a silky-smooth ride even on the most treacherous terrain. A benchmark in the big-cube trail arena, it boasts an impressive 1000cc Boxer twin engine, delivering a potent mix of power and control. With its upright riding position and generous ground clearance, the R 100GS is tailor-made for long-distance touring and off-road excursions. As you twist the throttle, the bike’s character shines through, a perfect blend of refinement and ruggedness that makes it an ideal companion for any rider looking to conquer the unknown.
The BMW R 100GS is the perfect antidote to the increasingly urbanized world of motorcycling, offering a chance to reconnect with the raw thrill of the open road and the great outdoors. Its legendary Paralever suspension system provides unparalleled stability and control, while its 1000cc engine pumps out a commanding 85 horsepower. Whether tackling the tarmac or venturing into the unknown, the BMW R 100GS is the ultimate adventure machine, capable of delivering an unforgettable experience with every twist of the wrist.
BMW has long been the standard-bearer for big-cube trail bikes, and the R 100GS is the culmination of decades of innovation and expertise. This is a motorcycle that embodies the very spirit of adventure, a testament to the ingenuity and craftsmanship of the BMW marque.
Key Specifications
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
Engine Capacity
980 cc / 59.8 cu in.
Max Power
44 kw / 60 hp
Max Torque
76 Nm / 7.75 kgf-m / 56 ft-lb @ 3750 rpm
Top Speed
Fuel Tank Capacity
24 L / 6.3 US gal
Weight (Wet/Kerb)
462 lbs / 210 kg
Seat Height
33.5 inches / 850 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
BMW R 100GS
Year
1989 – 90
Engine
Engine Type
Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
The BMW K 75RT, a touring masterpiece born from a desire to innovate and disrupt the status quo. By the mid-1980s, BMW had shifted its focus from air-cooled boxers to in-line water-cooled fours and triples, the latter of which featured a robust and reliable 750cc engine. The K 75RT, with its sleek touring fairing and comfortable ergonomics, was the perfect blend of performance and practicality.
Its 750cc engine, while not as powerful as some of its contemporaries, offered a smooth and linear power delivery that made it an ideal companion for long-distance touring. The K 75RT’s handling was equally impressive, with a balance of agility and stability that made it a joy to ride on winding roads.
Despite its eventual demise, the BMW K 75RT remains a testament to the brand’s commitment to innovation and quality. With its rich history and timeless design, it’s no wonder that this iconic motorcycle has captured the hearts of enthusiasts around the world. The BMW K 75RT is a true classic, a motorcycle that continues to inspire and delight riders to this day.
Key Specifications
Engine Type
Four-stroke, horizontal three cylinder in-line, DOHC, 2 valves per cylinder
Engine Capacity
740 cc / 45 cub. in.
Max Power
55 kw / 75 hp
Max Torque
68 Nm / 6.9 kgf-m / 50 ft lb @ 6750 rpm
Top Speed
Fuel Tank Capacity
21 liters / 4.6 US gal
Weight (Wet/Kerb)
567 lbs / 257 kg
Seat Height
31.9 inches / 810 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
BMW K 75RT
Year
1989-95
Engine
Engine Type
Four-stroke, horizontal three cylinder in-line, DOHC, 2 valves per cylinder
In 1979, BMW faced a daunting decision: to abandon motorcycle production amidst declining sales. But Dr. Sarfert’s vision for innovation prevailed, and the K589 project was born. This revolutionary bike would go on to become the BMW K100, a game-changing machine that redefined the riding experience.
The K100’s engine, a longitudinally-mounted water-cooled inline-four, produced 90 PS of power and a smooth, torquey delivery. This was no ordinary motorcycle engine – its design was influenced by the Peugeot 104 car engine, which had been experimented with in the late 1970s. The result was a powerhouse that could rival its car counterparts.
As you twist the throttle, the K100’s engine comes alive, its inline-four thrumming with a deep, throaty growl. The riding experience is one of effortless acceleration and precise handling, making it an ideal companion for both daily commutes and long-distance touring.
With its innovative design and exceptional performance, the BMW K100 was a bold statement of intent from a marque that had faced the brink of extinction. And it proved to be a turning point, paving the way for BMW to become one of the world’s leading motorcycle manufacturers. The BMW K100 was more than just a motorcycle – it was a symbol of innovation and a new era of riding excitement.
Key Specifications
Engine Type
Four stroke, horizontal in line four cylinder, DOHC, 2 valves per cylinder
Engine Capacity
987 cc / 60.2 cub. in
Max Power
65.6 kw / 90 hp
Max Torque
86 Nm / 8.8 kgf-m / 63 ft-lb
Top Speed
Fuel Tank Capacity
22 Liters / 5.8 US gal
Weight (Wet/Kerb)
527 lbs / 239 kg
Seat Height
31.90 inches / 810 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
BMW K100
Year
1986 – 90
Engine
Engine Type
Four stroke, horizontal in line four cylinder, DOHC, 2 valves per cylinder
