BMW R80T
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BMW R80T | |
Manufacturer | |
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Production | 1981 |
Engine | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. |
Compression ratio | 9.2:1 |
Ignition | Battery ignition |
Spark Plug | Bosch W 7 D / Beru14-7DU / Champion N9YC |
Transmission | 5 Speed |
Frame | Double loop tubular frame with bolt on rear section |
Suspension | Front: Telescopic hydraulic fork Rear: BMW Monolever swinging arm |
Brakes | Front: Single ∅285mm disc, 1 piston caliper Rear: ∅200mm Drum |
Front Tire | 100/90-H19 |
Rear Tire | 120/90-H18 |
Weight | 231 Kg / 509 lbs (dry), |
Fuel Capacity | 19 Liters / 5.0 US gal |
Manuals | Service Manual |
Engine[edit | edit source]
The engine was a Air cooled cooled Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.. The engine featured a 9.2:1 compression ratio.
Drive[edit | edit source]
Power was moderated via the Dry single plate, with diaphragm spring.
Chassis[edit | edit source]
It came with a 100/90-H19 front tire and a 120/90-H18 rear tire. Stopping was achieved via Single ∅285mm disc, 1 piston caliper in the front and a ∅200mm Drum in the rear. The front suspension was a Telescopic hydraulic fork while the rear was equipped with a BMW Monolever swinging arm. The R80T was fitted with a 19 Liters / 5.0 US gal fuel tank. The bike weighed just 231 Kg / 509 lbs.
Photos[edit | edit source]
Overview[edit | edit source]
Make Model | BMW R 80RT |
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Year | 1981 |
Engine Type | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. |
Displacement | 797.5 cc / 48.7 cu in. |
Bore X Stroke | 84.8 x 70.6 mm |
Cooling System | Air cooled |
Compression | 9.2:1 |
Induction | 2 x Bing constant depression carburetors |
Ignition | Battery ignition |
Alternator | Bosch 12 V/280 W |
Spark Plug | Bosch W 7 D / Beru14-7DU / Champion N9YC |
Starting | Electric |
Max Power | 36.4 kW / 50 hp @ 6500 rpm |
Max Torque | 58 Nm / 5.9 kgf-m / 42 ft/lb @ 4000 rpm |
Clutch | Dry single plate, with diaphragm spring |
Transmission | 5 Speed |
Final Drive | Shaft |
Gear Ratio | 1st 4.40 / 2nd 2.86 / 3rd 2.07 / 4th 1.67 / 5th 1.50:1 |
Rear Wheel Ratio | 1:3.20 or 1:3.36 |
Frame | Double loop tubular frame with bolt on rear section |
Front Suspension | Telescopic hydraulic fork |
Rear Suspension | BMW Monolever swinging arm |
Front Brakes | Single ∅285mm disc, 1 piston caliper |
Rear Brakes | ∅200mm Drum |
Front Tire | 100/90-H19 |
Rear Tire | 120/90-H18 |
Dry Weight | 231 Kg / 509 lbs |
Fuel Capacity | 19 Liters / 5.0 US gal |