BMW R 100/7 (1976-77) vs Ducati Diavel 1260 S Black and Steel (2021) vs BMW R850C / R 850 C Avantgarde (1997-) vs BMW R 100GS Bubble Bee (1988)

Comparison technical specifications

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Make:	BMW	Ducati	BMW	BMW
Model:	R 100/7	Diavel 1260 S Black and Steel	R850C / R 850 C Avantgarde	R 100GS Bubble Bee
Years:	1976-77	2021	1997-	1988
Engine:	Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder	Four stroke, Testastretta DVT (Desmodromic Variable Timing), 90° L-Twin, 4 Desmodromically actuated valves per cylinder, dual spark	Four stroke, two-cylinder, horizontally-opposed Boxer engine, 4 valves per cylinder	Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
Capacity:	980 cc / 59.8 cu in.	1262 cc / 77 cu-in	848 cc / 51.7 cu in.	980 cc / 59.8 cu in.
Bore x Stroke:	94 x 70.6 mm	106 x 71.5 mm	87.5 x 70.5 mm	94 x 70.6 mm
Cooling System:	Air cooled	Liquid cooled	Air/Oil-cooled	Air cooled
Compression Ratio:	9.1:1	13.0:1	10.3:1	8.5:1
Induction:	2 x 36mm Bing V94 carburetors	Bosch electronic fuel injection system, Øeq 56 mm elliptical throttle bodies with Ride-by-Wire system	Electronic injection, Bosch Motronic	2 x Bing carburetors
Ignition:	Battery ignition	Electronic	Electronic Bosch Motronic MA 2.4	Electronic ignition, Bosch
Starting:	Electric	Electric	Electric	Electric
Max Power:	44.1 KW / 60 hp @ 7000 rpm	157 hp / 116 kW @ 9250 rpm	36.4 kW / 50 hp @ 5250 rpm	44 kW / 60 hp @ 6500 rpm
Max Torque:	71.5 Nm / 7.29 kgf-m / 53 ft-lb @ 6500 rpm	129 Nm / 95 lb-ft @ 7500 rpm	71 Nm / 7.2 kgf-m / 52 ft lb @ 4750 rpm	76 Nm / 7.75 kgf-m / 56 ft-lb @ 3750 rpm
Clutch:	Single dry plate	Slipper and self-servo wet multiplate clutch with hydraulic control	Single disc dry clutch, hydraulically operated	Dry single plate, with diaphragm spring
Transmission:	5 Speed	6-Speed with Ducati Quick Shift up/down Evo (DQS)	5 Speed	5 Speed
Final Drive:	Shaft	Chain, Front sprocket Z15, Rear sprocket Z43	Shaft	Shaft
Frame:	Double sown tubs, dual cradle	Tubular steel trellis frame	Three section composite frame consisting of front & rear section, load bearing engine	Double loop tubular frame with bolt on rear section
Front Suspension:	Telescopic fork with hydraulic shock absorber.	48 mm USD Öhlins adjustable fork, TiN treatment	Telelever fork with longitudinal control arm and central strut.	Telescopic fork with hydraulic shock absorber.
Front Wheel Travel:	200 mm / 7.8 in	120 mm / 4.7 in	145 mm / 5.6 in	225 mm / 8.8 in
Rear Suspension:	Long swinging arm with adjustable strut.	Öhlins fully adjustable monoshock, Aluminium casted single-sided swingarm	Monolever swinging arm	Paralever adjustable preload, rebound damping compression
Rear Wheel Travel:	125 mm / 4.9 in	130 mm / 5.1 in	100 mm / 3.9 in	180 mm / 7.0 in
Front Brakes:	Single ∅260mm disc	2 x 320mm semi-floating discs, Radially mounted Brembo monobloc 4-piston M50 callipers, PR16/19 radial master cylinder	2 x ∅305mm discs, 4 piston calipers	Single ∅285mm disc, 2 piston caliper
Rear Brakes:	200mm Drum	Single 265mm disc, 2-piston Brembo floating calliper	Single ∅285mm disc, 2 piston caliper	∅200 Drum
Front Wheel:	1.85 - B19	Light alloy, casted and machined, 3.50 x 17	BMW cross spoke wheels 2.50 x 18 MT H2	1.85 - 21 MTH 2
Rear Wheel:	2.15 - B18	Light alloy, casted and machined, 8.00 x 17	BMW cross spoke wheels 4.00 x 15 MT H2	2.50 - 17 MTH 2
Front Tyre:	3.25 - H19	120/70 ZR17 Pirelli Diablo Rosso III	100/90 - 18	90/90-21
Rear Tyre:	4.00 - H18	240/45 ZR17 Pirelli Diablo Rosso III	170/80 - B15	130/80-17
Wheelbase:	1465 mm / 57.67 in	1600 mm / 63.0 in	1650 mm / 64.9 in	1514 mm / 59.6 in
Seat Height:	810 mm / 31.9 in	780 mm / 30.7 in	740 mm / 29.1 in	850 mm / 33.5 in
Wet Weight:	215 kg / 474 lbs	247 kg / 544 lbs	195 kg / 425 lbs	210 kg / 462 lbs
Fuel Capacity:	24 L / 6.3 US gal	17 Litres / 4.5 US gal	17 L / 4.4 US gal	24 L / 6.3 US gal