BMW
R75/5 (745cc) 1976
R75/5 (745cc) 1976
A sympathetically restored classic airhead.
New paint and many new parts, starts runs and rides perfectly.
Mileage: 30541 KLM
Engine
Motor Type: Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled
Bore x Stroke: 82 x 70.6 mm (3.22 x 2.77 in)
Displacement: 745 cc
Max Power: 50 hp (36.8 KW) at 6,200 rpm
Max Torque: 60 Nm / 44 ft lb at 5,000 rpm
Compression Ratio: 9.0 : 1
Valves Per Cylinder: 2
Valve Control: OHV, using push rod and rocker arm
Carburation System: 2 constant depression carburettors, Bing 64/32/4-3 or 64/32/9-10
Engine Lubricating System: Wet sump
Power Transmission
Clutch: Dry single plate, with diaphragm spring
Number of Gears: 4
Gear Selection: Dog type gearbox (ratchet foot lever)
Gearbox Ratios: 3.896 / 2.578 / 1.875 / 1.50 :1
Rear Wheel Ratio: 1 : 3.2 (1 : 2.91 optional)
Bevel/Crownwheel: 10 / 32 teeth (11 / 32 optional)
Electrical System
Ignition System: Battery ignition
Alternator: Bosch 12 V/180 W
Starter: Bosch 0.5 hp
Spark Plugs: Bosch W 200 T 30 / Beru 200/14/3 A / Champion N7Y
Chassis
Type of Frame: Double loop tubular frame with bolt on rear section
Front wheel suspension: Telescopic fork with hydraulic shock absorber
Rear wheel suspension: Long swinging arm with strut
Spring Travel Front/Rear: 208 / 125 mm (8.18 x 4.92 in)
Wheel Rims, Front: 1.85 B 19
Wheel Rims, Rear: 1.85 B 18 or 2.15 B 18
Tyres, Front: 3.25 S 19
Tyres, Rear: 4.00 S 18
Brakes, Front: Duplex drum brake 200 mm / 7.87 in diameter
Brakes, Rear: Simplex drum brake 200 mm / 7.87 in diameter
Dimensions/Weights
Length x Width x Height: 2100 (from 1973: 2150) x 852 x 1040 mm (82.67 (84.64) x 33.54 x 40.94 in)
Wheel Base: 1385 mm / 54.52 in (from 1973: 1435 mm / 56.49 in)
Fuel Tank Capacity: 17 litres / 3.73 gal / 4.49 gal US)
Unladen Weight with Full Tank: 205 Kg / 451 lb
Max. Permissible Weight: 398 Kg / 876 lb
Ground Clearance: 165 mm / 6.49 in
Seat Height (Unladen): 850 mm (33.5 inches)
Fuel Consumption: 4.5 litres 100Km (at constant 90 Kph) / 62 mpg / 52 mpg US
Top Speed: 175 Kph / 108 mph
Acceleration 0 - 100 Kph / 62 mph 6.4 seconds