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R 75 /7

R 75/7
. Data sheet
. Back to Models
Production
Begin of Production 1976
End of Production 1977
Number Sold 6.264
Price 7.985,- DM
Engine
Motor Type four-stroke, two-cylinder, horizontally-opposed "Boxer" engine, air-cooled
Bore x Stroke 82 x 70,6 mm
Cubic Capacity 745 ccm
Max Power 50 hp (36,8 KW) at 6200 rpm
Max Torque 58,8 Nm at 5000 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 64/32/13-64/32/14
Engine Lubrication wet sump
Power transmission
Clutch dry single plate, with diaphragm spring
Number of Gears 5
Gear Selection dog-type gearbox (ratchet foot lever)
Gear Ratios 4.4 / 2.86 / 2.07 / 1.67 / 1.50 :1 (optional sport version 3.38 / 2.43 / 1.93 / 1.67 / 1.50)
Rear Wheel Ratio 1 : 3.20 or 1 : 3.36
Bevel / Crownwheel 10 / 32 teeth or 11 / 37 teeth
Electrical system
Ignition battery ignition
Alternator Bosch 12 V/280 W
Starter Bosch 0.6 hp
Spark Plugs Bosch W 200 T 30/Beru 200/14/3 A/Champion N 7 Y
Chassis
Type of Frame double-loop tubular frame with bolt-on rear section
Front Suspension telescopic fork with hydraulic shock absorber
Rear Suspension long swinging arm with adjustable strut
Spring Travel front/rear 200 / 125 mm
Rims front 1.85 B 19
Rims rear 2.15 B 18
Tyres front 3.25 S 19
Tyres rear 4.00 S 18
Brakes front single disc brake 260 mm dia
Brakes rear simplex drum brake 200 mm dia
Dimensions / Weights
Length x Width x Height 2130 x 746 x 1080 mm
Wheel Base 1465 mm
Tank Capacity 24 l
Unladen Weight, full Tank 215 kg
Max permissible Weight 398 kg
Ground Clearance 165 mm
Fuel Consumption 4,5 l/100 km (at constant 90 kph)
Top Speed 177 kph
Acceleration 0-100 kph 6,7 sec
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