BMW R100/7 (1976)

Technical Specifications
1976 BMW R100/7
Engine 
Engine type Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled
Bore x Stroke 94.0 x 70.6 mm (3.70 x 2.78 inches)
Displacement 980 cc
Valves 2 valves per cylinder; OHV, using push rod and rocker arm
Compression ratio 9.1:1
Max Power 60 hp (44.1 KW) @ 6500 rpm
Max Torque 73.5 Nm / 54 ft lb @ 4000 rpm
Fuel system Electronic injection, Bosch Motronic MA 2.4
Transmission 5-speed; Dog type gearbox (ratchet foot lever)
Final drive Cardan
Clutch Dry single plate, with lever action diaphragm spring
Ignition type Battery ignition
Starting system Electric starter
Lubrication Wet sump
Exhaust
Spark plug Bosch W 200 T 30 / Beru 200/14/3 A / Champion N7Y
Generator
Gear ratios 4.4 / 2.86 / 2.07 / 1.67 / 1.50 : 1
Dimensions 
Frame type Double loop tubular frame with bolt on rear section
Castor
Overall length 2130 mm (83.85 inches) (83.85 x 29.37 x 42.51 in)
Overall width 746 mm (29.37 inches)
Overall height 1080 mm (42.51 inches)
Wheelbase 1465 mm (57.67 inches)
Seat height 810 mm (31.90 inches)
Ground clearance 165 mm (6.49 inches)
Dry weight 215 kg
Fuel capacity 24 litres
Colors
Suspension (front) Telescopic fork with hydraulic shock absorber
Suspension (rear) Long swinging arm with adjustable strut
Tyre (front) 3.25 H 19
Tyre (rear) 4.00 H 18
Brake (front) Dual disc brake 260 mm / 10.23 in diameter. ATE 1 piston caliper
Brake (rear) Simplex drum brake 200 mm / 7.87 in diameter

Image: http://www.motorcyclespecs.co.za/model/bmw/bmw_r60-7%2076.htm

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BMW R100 Mono

Technical Specifications
BMW R100 Mono
Engine
Engine type Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled
Bore x Stroke 94.0 x 70.6 mm (3.70 x 2.78 inches)
Displacement 980 cc
Valves 2 valves per cylinder; OHV, using push rod and rocker arm
Compression ratio 8.45:1
Max Power 60 hp (44 KW) @ 6500 rpm
Max Torque 74 Nm (58 ft lbs) @ 3500 rpm
Fuel system 2 32mm Bing CV Carbs
Transmission 5-speed; Dog type gearbox (ratchet foot lever)
Final drive Cardan
Clutch Dry single plate, with lever action diaphragm spring
Ignition type Contact free electronic ignition (Bosch)
Starting system Electric starter
Lubrication Wet sump
Exhaust
Spark plug Bosch W 5 D / Beru 14-5D / Champion N6Y
Generator
Gear ratios 4.4 / 2.86 / 2.07 / 1.67 / 1.50 : 1
Dimensions
Frame type Double loop tubular frame with bolt on rear section
Castor
Overall length 2175 mm (85.60 inches)
Overall width 800 mm (31.50 inches)
Overall height 1447 mm (57.00 inches)
Wheelbase 1447 mm (57.00 inches)
Seat height 807 mm (31.80 inches)
Ground clearance 165 mm (6.49 inches)
Dry weight
Fuel capacity 22 litres
Colors
Suspension (front) Telescopic fork with hydraulic shock absorber, 38.5mm stanchion tube diameter
Suspension (rear) BMW Monolever swinging arm with single gas filled shock, 4.8 in travel
Tyre (front) 90/90H x 18 tubeless; MTH2 2.50 x 18 E cast alloy
Tyre (rear) 120/90H x 18 tubelss; MTH2 2.50 x 18 E cast alloy
Brake (front) Dual disc brake 285 mm / 11.22 in diameter. Brembo 2 piston caliper
Brake (rear) Simplex drum brake 200 mm / 7.87 in diameter

Image: http://www.bmbikes.co.uk/photos/specphotos/r100mono%20%282%29.jpg

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BMW R100 (1980)

Technical Specifications
1980 BMW R100
Engine
Engine type Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled
Bore x Stroke 94.0 x 70.6 mm (3.70 x 2.78 inches)
Displacement 980 cc
Valves 2 valves per cylinder; OHV, using push rod and rocker arm
Compression ratio 8.2:1
Max Power 67 hp (49 KW) @ 7000 rpm
Max Torque 72 Nm / 53.09 ft lb @ 5500 rpm
Fuel system 2 constant depression carburettors, Bing V 94/40/111 - 94/40/112
Transmission 5-speed; Dog type gearbox (ratchet foot lever)
Final drive Cardan
Clutch Dry single plate, with lever action diaphragm spring
Ignition type Contact free electronic ignition (Bosch)
Starting system Electric starter
Lubrication Wet sump
Exhaust
Spark plug Bosch W 5 D / Beru 14-5D / Champion N6Y
Generator
Gear ratios 4.4 / 2.86 / 2.07 / 1.67 / 1.50 : 1
Dimensions
Frame type Double loop tubular frame with bolt on rear section
Castor
Overall length 2210 mm (87.00 inches)
Overall width 746 mm (29.37 inches)
Overall height 1210 mm (47.63 inches)
Wheelbase 1465 mm (57.67 inches)
Seat height 820 mm (32.30 inches)
Ground clearance 165 mm (6.49 inches)
Dry weight 218 kg
Fuel capacity 24 litres
Colors
Suspension (front) Telescopic fork with hydraulic shock absorber
Suspension (rear) Long swinging arm with adjustable strut
Tyre (front) 3.25 H 19
Tyre (rear) 4.00 H 18
Brake (front) Dual disc brake 260 mm / 10.23 in diameter. Brembo 2 piston caliper
Brake (rear) Simplex drum brake 200 mm / 7.87 in diameter

Image: http://www.bmbikes.co.uk/photos/specphotos/r100.jpg

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BMW R90S (1973)

Technical Specifications
1973 BMW R90S
Engine
Engine type Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled
Bore x Stroke 90.0 x 70.6 mm (3.54 x 2.77 inches)
Displacement 898 cc
Valves 2 valves per cylinder; OHV, using push rod and rocker arm
Compression ratio 9.5:1
Max Power 67 hp (49.3 KW) @ 7000 rpm
Max Torque 76 Nm / 56 ft lb @ 5500 rpm
Fuel system 2 slide carburettors, Dellorto PHM 38 AS-AD or 38 BS-BD
Transmission 5-speed; Dog type gearbox (ratchet foot lever)
Final drive Cardan
Clutch Dry single plate, with lever action diaphragm spring
Ignition type Battery ignition
Starting system Electric starter
Lubrication Wet sump
Exhaust
Spark plug Bosch W 200 T 30 / Beru 200/14/3 A / Champion N7Y
Generator
Gear ratios 4.4 / 2.86 / 2.07 / 1.67 / 1.50
Dimensions
Frame type Double loop tubular frame with bolt on rear section
Castor
Overall length 2180 mm (85.82 inches)
Overall width 740 mm (29.13 inches)
Overall height 1210 mm (47.63 inches)
Wheelbase 1465 mm (57.67 inches)
Seat height 820 mm
Ground clearance 165 mm
Dry weight 215 kg
Fuel capacity 24 litres
Colors
Suspension (front) Telescopic fork with hydraulic shock absorber
Suspension (rear) Long swinging arm with adjustable strut
Tyre (front) 3.25 H 19
Tyre (rear) 4.00 H 18
Brake (front) Dual disc brake 260 mm / 10.23 in diameter. ATE 1 piston caliper
Brake (rear) Simplex drum brake 200 mm / 7.87 in diameter

Image: http://www.topspeed.com/motorcycles/motorcycle-reviews/bmw/1973-1976-bmw-r90s-ar28833.html

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BMW R850RT (1996)

Technical Specifications
1996 BMW R850RT
Engine
Engine type Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled
Bore x Stroke 87.8 x 70.5 mm (3.45 x 2.77 inches)
Displacement 848 cc
Valves 4 valves per cylinder; hc, using chain drive, cup tappets, push rod and rocker arm
Compression ratio 10.3:1
Max Power 70 hp (52 KW) @ 7000 rpm
Max Torque 77 Nm / 56 ft lb @ 5600 rpm
Fuel system Electronic intake pipe injection: Bosch Motronic MA 2.4 with overrun fuel cut off
Transmission Constant mesh 6 speed gearbox
Final drive Shaft Drive
Clutch Single disc dry clutch, hydraulically operated
Ignition type Electronic ignition, Bosch Motronic MA 2.4
Starting system Electric starter
Lubrication Wet sump
Exhaust
Spark plug Bosch FR6 DDC
Generator
Gear ratios 2.05 / 1.60 / 1.27 / 1.04 / 0.80 : 1
Dimensions
Frame type 2 section composite frame consisting of front & rear section, load bearing engine
Castor
Overall length 2170 mm (85.43 inches)
Overall width 940 mm (37.00 inches)
Overall height 1220 mm (48.03 inches)
Wheelbase1487 mm (58.54 inches)
Seat height 800 mm (31.49 inches)
Ground clearance 172 mm (6.77 inches)
Dry weight 282 kg
Fuel capacity 20.5 litres
Colors
Suspension (front) BMW Motorrad Telelever; central strut, rebound damping adjustable
Suspension (rear) Die cast aluminium single sided swinging arm with BMW Motorrad Paraleve
Tyre (front) 120 / 70-ZR 17
Tyre (rear) 170 / 60-ZR 17
Brake (front) EVO brake system with dual disc 320 mm, 4 piston fixed caliper
Brake (rear) Single disc brake 276 mm, double piston floating caliper

Image: http://www.powerlet.com/shop-by-vehicle/bmw/1996/bmw-r1100rt-rtl-1996-2001/9/220

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