Piaggio MP3 500 (2015) vs Bimota DB2EF (1997) vs BMW R 23 (1938-40)

Comparison technical specifications

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Make:	Piaggio	Bimota	BMW
Model:	MP3 500	DB2EF	R 23
Years:	2015	1997	1938-40
Engine:	Four stroke, single cylinder, SOHC, 4 valve Piaggio MASTER, catalysedFour stroke, single cylinder, SOHC, 4 valve Piaggio MASTER, catalysed	Four stroke, 90°“L”twin cylinder, SOHC, desmodromic 2 valve per cylinder	Four stroke, single cylinder, pushrod operated, OHV, 2 valves per cylinder.
Capacity:	492.7 cc / 30.0 cub in.	904 cc / 55.2 cub in	247 cc / 15.1 cu in.
Bore x Stroke:	94 x 71 mm	92 x 68 mm	68 x 68 mm
Cooling System:	Liquid cooled	Air cooled	Air cooled
Compression Ratio:	11.0:1	9.2:1	6.75:1
Induction:	Electronic injection system	2x 38mm Mikuni carburetors	1x Bing type AJ 1/22/140
Ignition:	Electronic inductive discharge, integrated variable timing	-	Battery ignition
Starting:	Electric	Electric	Kick
Max Power:	29.4 kW / 40.1 hp @ 7250 rpm	64.1 kW / 86 hp @ 7000 rpm	8.9 kW / 12 hp @ 5600 rpm
Transmission:	Twin Cradle: tubes in high tensile steel	6 Speed	3 Speed
Final Drive:	Belt	Chain	Shaft
Frame:	Double cradle in high strength steel tubes	Upper lattice work in round section of chrome-molybdenum steel.	Closed steel twin loop frame, welded
Front Suspension:	Parallelogram composed of four aluminium arms supporting two steering tubes cantilevers.	41mm Paioli telescopic forks	Telescopic fork
Rear Suspension:	Dual effect hydraulic shock absorbers and adjustable spring pre-load,	Tubular steal swinging arm Öhlins monoshock	Rigid, spring loaded saddle
Rear Brakes:	Single 240 mm disc	Single 230mm disc 2 piston caliper	∅160mm Drum
Front Tyre:	Dual 120/70 -12	120/70-17	3.00 x 19"
Rear Tyre:	140/70 -14	180/55-17	3.00 x 19"
Fuel Capacity:	12 Litres / 3.2 US gal	16 Litres / 4.2 US gal.	9.6 L / 2.5 US gal