BMW R80 RT Mono (1984-85)

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The BMW R80 RT Mono is a motorcycle that was made from 1984-85. It has a four-stroke, two-cylinder horizontally opposed boxer engine with a capacity of 797.5 cc. The bike is air-cooled and has a compression ratio of 8.2:1. The engine is operated by pushrods and has two valves per cylinder. It is powered by two Bing constant depression carburetors and has battery ignition. The alternator used is a 12V/280W Bosch. The R80 RT Mono has an electric starting system, and its maximum power output is 36.4 kW at 6500 RPM. It has a dry single plate clutch with a diaphragm spring and a shaft final drive. Its transmission is five-speed. The front suspension features telescopic hydraulic forks, and the rear suspension is a long swinging arm with an adjustable strut. The front has two 260mm discs with a one-piston caliper, and the rear has a single 200mm drum brake. The bike has a wheelbase of 1465mm and a seat height of 810mm. Its wet weight is 235kg with a fuel capacity of 24 litres. The bike has a top speed of 171km/h and takes 13.9 seconds to do 1/4 mile.

Technische Daten:

Make Model: BMW R 80RT Mono

Year: 1984 – 85


Motor: Viertakt-Zweizylinder-Boxermotor, horizontal gegenüberliegend, mit Stößelstangen betätigt, 2 Ventile pro Zylinder.
Hubraum: 797,5 cm³ / 48,7 cu in.
Bohrung x Hub: 84,8 x 70,6 mm
Kühlsystem: Luftgekühlt
Verdichtungsverhältnis: 8,2:1
Induction: 2 x Bing constant depression carburetors
Zündung: Batteriezündung
Lichtmaschine: Bosch 12 V/280 W
Spark Plug: Bosch W 175 T 30
Anfahren: Elektrisch
Maximale Leistung: 36,4 kW / 50 PS bei 6500 U/min
Max Torque: 59 Nm / 6.0 kgf-m / 43 ft lb @ 3500 rpm
Kupplung: Trockene Einzelscheibe, mit Tellerfeder
Getriebe: 5-Gang
Endantrieb: Welle

Gear Ratio: 1st 4.40 / 2nd 2.86 / 3rd 2.07 / 4th 1.67 / 5th 1.50
Rear Wheel Ratio: 1:3.20 or 1:3.36
Front Suspension: Telescopic hydraulic forks.
Front Wheel Travel: 200 mm / 7.3 in
Hintere Aufhängung: Lange Schwinge mit verstellbarem Federbein.
Rear Wheel Travel: 125 / 4.9 in
Front Brakes: 2 x 260mm discs, 1 piston caliper
Rear Brakes: Single 200mm drum
Vorderrad: 2.15 - B19
Hinterrad: 2.50 - B18
Vorderreifen: 3.25 - H19
Hinterreifen: 4.00 - H18
Dimensions: Length 2210 mm / 87.0 in Width 746 mm / 29.3 in Height 1465 mm / 57.6 in
Radstand: 1465 mm / 57.67 in
Sitzhöhe: 810 mm / 31.9 in
Ground Clearance: 130 mm / 5.11 in
Wet Weight: 235 kg / 417 lbs
Fuel Capacity: 24 Litres / 6.3 gal
Consumption Average: 4.9 L/100 km / 20.4 km/l / 48 mpg
Standing 1/4 Mile: 13.9 sec

Top Speed: 171 km/h / 106 mph
Manual: 5united.net / BMW

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