AJS Model 20 500 (1948-61) vs GIMA Gima 250 Act (1953-55) vs Honda CBR 400R (2016-17) vs Vespa 50 (N, L, R, S, SS, SR) (1963-90) vs Vespa Primavera 50 (2015-17) vs Vespa 946 Emporio Armani (2015) vs Laverda CR 600 Cruiser (1988) vs Yamaha YZF 1000R Thunder ace (1999) vs Vespa 90, 90 SS and 90 Racer (1963-84) vs Highland 950 V2 Outback (2006-) vs Vespa 946 Emporio Armani 125 (2015-17)

Comparison technical specifications

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Make:	AJS	GIMA	Honda	Vespa	Vespa	Vespa	Laverda	Yamaha	Vespa	Highland	Vespa
Model:	Model 20 500	Gima 250 Act	CBR 400R	50 (N, L, R, S, SS, SR)	Primavera 50	946 Emporio Armani	CR 600 Cruiser	YZF 1000R Thunder ace	90, 90 SS and 90 Racer	950 V2 Outback	946 Emporio Armani 125
Years:	1948-61	1953-55	2016-17	1963-90	2015-17	2015	1988	1999	1963-84	2006-	2015-17
Engine:	Four stroke, parallel twin cylinder, OHV. 2 valve per cylinder, Crankshaft: 3-saved plain bearing / roller bearing	Four stroke	Four stroke, parallel-twin, DOHC; 4 valves per cylinder	Two stroke, single cylinder	Four stroke, single cylinder, SOHC, 4 valve, catalytic converter	Four stroke, single cylinder, catalytic converter, EFI, SOHC, 3 valves	Four stroke, parallel twin cylinders, DOHC, 4 valve per cylinder, 180° crankshaft.	Four stroke, transverse four cylinder, DOHC, 5 valves per cylinder	Two stroke, single cylinder	Four stroke, 60° V-Twin, DOHC, 4 valves per cylinder	Four stroke, single cylinder, SOHC, 3 valve
Capacity:	498 cc / 30.4 cu in	250 cc /15.26 cu in	399 cc / 24.3 cu-in	49.8 cc / 3.0 cub in	49 cc / 3 cub in	155 cc / 9.5 cub in	571.6 cc / 30.3 cu-in	1002 cc / 61.1 cu-in	88.5 cc / 5.4 cub in	936 cc / 57.1 cu-in	124.5 cc / 7.6 cub in
Starting:	Kick	Kick	Electric	Kick start	Electric	Electric	Electric	Electric	Kick start	Electric	Electric
Final Drive:	Chain	Chain	O-ring-sealed chain	Direct drive	Belt	Belt	Chain	Chain	Direct drive	Chain	Belt
Front Suspension:	Hydraulic telescopic fork	Telescopic forks	41mm Telescopic fork	Hydraulic shock absorber with rubber elements	Single arm with coil spring and dual action mono shock absorber	Single link arm with coil spring and dual-action hydraulic shock absorber	Gas assisted telescopic forks	45mm forks, adjustable preload, bump and rebound.	Coil spring and hydraulic shock absorber	50mm WP, adjustable compression and rebound	Single arm with coil spring and dual action mono shock absorber
Rear Suspension:	Dual chocks	Plunger	Pro-Link single shock with nine-position spring preload adjustability;	Hydraulic shock absorber	Hydraulic monoshock	Coil spring with adjustable preload, mono shock with progressive lever system	Single shock	Mono shock adjustable preload, bump and rebound.	Coil spring and hydraulic shock absorber	WP, adjustable stiffness, compression and rebound	Coil spring with adjustable preload, Mono shock with progressibe lever system
Front Brakes:	Drum	Drum	Single 320mm wave disc 2 piston calipers	Drum	Stainless steel disc, 200 mm, hydraulically operated	220 mm disc	2x 280mm disc	2x 298mm discs 4 piston calipers	125 mm drum	Single 300mm disc 2 piston calipers	Single 220 mm disc, ABS
Rear Brakes:	Drum	Drum	Single 240mm wave disc 1 piston calipers	Drum	Drum, 140 mm, mechanically operated	220 mm disc	Single 270mm disc	Single 245mm disc 2 piston caliper	150 mm drum	Single 220mm disc 1 piston calipers	Single 220 mm disc, ABS