1985 BMW K100 RS technical specifications

Technical specifications

Model: K100 RS
Years: 1985
Production: 34 804 units (1983 - 92)
Engine: Four stroke, horizontal in line four cylinder, DOHC, 2 valves per cylinder
Capacity: 987 cc / 60.2 cub. in
Bore x Stroke: 67 x 70 mm
Compression Ratio: 10.2:1
Cooling System: Liquid cooled
Lubrication: Wet sump
Engine Oil: 10W40
Exhaust: Stainless steel, 4 into 1
Induction: Electronic injection, Bosch LE-Jetronic
Ignition: Electronic injection, Bosch LE-Jetronic
Spark Plug: Bosch XR 5 DC / Beru 12-5 DU / Champion A 85 YC
Battery: 20Ah
Starting: Electric
Max Power: 65.6 kW / 90 hp @ 8000 rpm
Max Power Rear Wheel: 61.7 kW / 83.9 hp @ 8250
Max Torque: 86 Nm / 8.8 kgf-m / 63 ft-lb @ 6000 rpm
Clutch: Dry, single plate, cable operated
Transmission: 5 Speed
Final Drive: Shaft
Gear Ratio: 1st 4.50 / 2nd 2.96 / 3rd 2.30 / 4th 1.88 / 5th 1.61:1
Frame: Tubular space frame, engine serving as load bearing component
Front Suspension: Telescopic fork with hydraulic shock absorber
Front Wheel Travel: 185 mm / 7.3 in
Rear Suspension: Monolever swinging arm
Rear Wheel Travel: 110 mm / 4.3 in.
Front Brakes: 2 x ∅285 mm discs, 2 piston calipers
Rear Brakes: Single ∅285 mm disc, 1 piston caliper
Wheels: Alloy, 8 spoke
Front Rim: 2.50 x 18 MT H 2
Rear Rim: 2.75 x 17 MT H 2
Front Tyre: 100/90-V18
Rear Tyre: 130/90-V17
Dimensions: Length 2220 mm / 87.4 in Width 800 mm / 31.5 in Height 1271 mm / 50.0 in
Wheelbase: 1516 m /59.7 in.
Ground Clearance: 175 mm / 6.9 in.
Seat Height: 810 mm / 31.90 in. (760 mm / 29.9 in for low seat model)
Wet Weight: 249 kg / 548 lbs
Fuel Capacity: 22 Liters / 5.8 US gal
Average Consumption: 4.3 l/100 km / 23.3 km/l / 55 US mpg
Braking 100 km/h / 62 mph - 0: 38.7 m / 127 ft
Standing ¼ Mile: 12.5 sec / 172 km/h / 107 mph
Standing 0 - 100 km/h / 62 mph: 4.3 sec
Top Speed: 220 km/h / 136 mph
Road Test: Superbike Group Test 1985 Motosprint

Photo gallery