BMW R 1100GS (1998)

The BMW R 1100GS is a motorcycle that was manufactured in 1998. It has a four stroke, two cylinder horizontally opposed Boxer engine with a capacity of 1084cc. The bike is air/oil-cooled and has a compression ratio of 10.3:1. The engine is equipped with Bosch Motronic 2.2 with fuel cutoff when coasting and electronic MA 2.2 controlled ignition. The battery is 12V, 19 Amp and the alternator is 700W, with a charging system of 14 V, 50 Amp. The bike has a single H4 55/60W quartz bulb headlamp and uses Bosch FR5 DTC spark plugs. The maximum power output is 59 kW / 80 hp @ 6750 rpm and the maximum torque is 97Nm / 9.9 kgf-m / 71 lb-ft / @ 5250 rpm. The transmission is 5-speed with a shaft final drive ratio of 3.0:1 (33:11). The bike has a three-piece frame, front suspension with pre-load adjustment, and rear suspension with pre-load and rebound damping adjustment. The front brakes consist of two 297mm discs with 3 piston calipers and the rear brake is a single 250mm disc with a 3 piston caliper. The bike has a fuel capacity of 24 liters and has an average consumption of 6.1 L/100 km. The bike can brake from 60 km/h to 0 in 14.0 m and has a top speed of 201.6 km/h. The BMW R 1100GS manual and technical information is available online.

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Technical specifications:

Make Model: BMW R 1100GS

Year: 1998

Engine: Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder

Capacity: 1084 cc / 66.1 cu in

Bore x Stroke: 99 x 70.5 mm

Cooling System: Air/oil-cooled

Compression Ratio: 10.3:1

Lubrication: Wet sump

Induction: Bosch Motronic 2.2 with fuel cutoff when coasting

Ignition: Electronic MA 2.2 controlled by Bosch Motronic

Battery: 12V, 19 Amp

Alternator: 700W

Charging System: 14 V, 50 Amp

Headlamp: Single H4 55/60W quartz bulb

Spark Plug: Bosch, FR5 DTC

Starting: Electric

Max Power: 59 kW / 80 hp @ 6750 rpm

Max Power Rear Tyre: 55.4 kW / 74.3 hp @ 6600 rpm

Max Torque: 97Nm / 9.9 kgf-m / 71 lb-ft / @ 5250 rpm

Clutch: 180mm Dry single plate with diaphram spring

Transmission: 5 Speed

Final Drive: Shaft

Final Drive Ratio: 3.0:1 (33:11)

Gear Ratio: 1st 4.16 / 2nd 2.91 / 3rd 2.13 / 4th 1.74 / 5th 1.45

Frame: Three piece (front and rear sections with load-bearing engine)

Front Suspension: BMW Telelever Single gas-filled shock absorber with progressive coil spring, Preload adjustment (five steps)

Front Wheel ravel: 190 mm / 7.5 in

Rear Suspension: BMW Paralever (single-sided swinging arm) Single gas-filled shock absorber with coil spring, Preload adjustment (continuously adjustable by handwheel), Rebound damping (continuously adjustable by screw)

Rear Wheel Travel: 200 mm / 7.9 in

Front Brakes: 2 x 297mm Discs, 3 piston calipers

Rear Brakes: Single 250mm disc, 3 piston caliper

Front Tyre: 110/80 R19

Front Wheel: 2.5 x 19 inch patented cross spoke

Rear Tyre: 150/70 R17

Front Wheel: 4 x 17 inch patented cross spoke

Dimensions: Length 2189 mm / 85.4 in Width 920 mm / 35.9 in Height 1366 mm / 53.7 in

Wheelbase: 1509 mm / 59.4 in

Seat Height: 840 mm / 33.0 in – 860 mm / 33.8 in

Dry Weight: 225 kg / 496.0 lbs

Wet Weight: 240 kg / 549 lbs

Ground Clearance: 200 mm / 7.8 in

Fuel Capacity: 24 Liters / US 6.3 gal

Consumption Average: 6.1 L/100 km / 16.4 km/l / 35.6 US mpg

Braking 60 km/h – 0: 14.0 m / 46 ft

Braking 100 km/h – 0: 40.5 m / 133 ft

Standing 1/4 Mile: 12.5 sec / 168.2 km/h /104.5 mph

Top Speed: 201.6 km/h / 125.3 mph

Manual & Tech info: BMWgsclub.nl / Blackbears.ru / Epll.no-ip.com / Wendell Duncan’s R1100GS microfiches