BMW K75 Specifications

Start of Production 1989

BMW K75RT

End of Production 1995
Numbers Produced 21,264
Price 16,900 DM
Engine  
Motor Type Four-stroke horizontal three cylinder in-line engine, liquid cooled
Bore x Stroke 67 x 70 mm (2.63 x 2.75 in)
Displacement 740 cc
Max Power 75 hp (55 KW) at 8,500 rpm
Max Torque 68 Nm / 50 ft lb at 6,750 rpm
Compression Ratio 11.0 : 1
Valves Per Cylinder 2
Valve Control DOHC, using drive chain and cup tappets
Carburation System Electronic injection, Bosch LE-Jetronic
Engine Lubricating System Wet sump
Power Transmission  
Clutch Dry single plate
Number of Gears 5
Gear Selection Dog type gearbox (ratchet foot lever)
Gearbox Ratios 4.50 / 2.96 / 2.30 / 1.88 / 1.67 : 1
Rear Wheel Ratio 1 : 3.20
Bevel/Crownwheel 10 / 32 teeth
   
Electrical System  
Ignition System Electronic ignition, Bosch LE-Jetronic
Alternator 12 V 460 W
Starter 0.7 Kw
Spark Plugs Bosch X 5 DC / Beru 12-5 DU
Chassis  
Type of Frame Tubular space frame, engine serving as load bearing component
Front wheel suspension Telescopic fork with hydraulic shock absorber
Rear wheel suspension BMW Monolever swinging arm
Spring Travel Front/Rear 185 / 114 mm (7.28 / 4.48 in)
Wheel Rims, Front MTH 2.50 x 18 E
Wheel Rims, Rear MTH 2.75 x 18 E
Tyres, Front 100/90 x 18 56 V
Tyres, Rear 120/90 x 18 56 V
Brakes, Front Dual disc brake 285 mm / 11.11 in diameter. Brembo 2 piston caliper
Brakes, Rear Single disc brake 285 mm / 11.22 in diameter
Dimensions/Weights  
Length x Width x Height 2230 x 916 x 1460 mm (87.79 x 36.06 x 57.48 in)
Wheel Base 1516 mm / 59.68 in
Fuel Tank Capacity 21 litres / 4.62 gal / 5.54 gal US
Unladen Weight with Full Tank 258 Kg / 568 lb
Max. Permissible Weight 450 Kg / 991 lb
Ground Clearance 175 mm / 6.89 in
Seat Height (Unladen) 810 mm (31.90 inches) or 760 mm (29.90 inches) for low seat model
Fuel Consumption (at constant 90 Kph) 4.5 litres 100 Km / 62 mpg / 52 mpg US
Top Speed 185 Kph / 115 mph
Acceleration 0 – 100 Kph / 62 mph 4.6 seconds
Power Graph

BMW K75 Power Graph