Velocette MOV (1933-48) vs CR&S CR&S Vun Gunmetal & CR&S Racing Checkers () vs Adler MB 250 RS (1953) vs AC Schnitzer R 1200S Sprintstar (2006) vs KYMCO Kymco AK 550 (2018) vs CR&S CR&S Duu Sbirluscenta ()

Comparison technical specifications

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Make:	Velocette	CR&S	Adler	AC Schnitzer	KYMCO	CR&S
Model:	MOV	CR&S Vun Gunmetal & CR&S Racing Checkers	MB 250 RS	R 1200S Sprintstar	Kymco AK 550	CR&S Duu Sbirluscenta
Years:	1933-48		1953	2006	2018
Engine:	Four stroke, single cylinder, OHV	Rotax, four stoke, single cylinder, DOHC, 4 valves per cylinder	2 cylinder, 2 stroke, flat-crowned pistons	Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder	Four stroke, parallel twin cylinder, DOHC, 4 Valve per cylinder	S & S X-Wedge, four stoke, 56 ° V-Twin, 2 Valves per cylinder
Capacity:	248 cc / 15.1 cub in	652 cc / 39.79 cu-in	247 cc / 15.1 cub in.	1170 cc / 71.4 cu in	550.4 cc / 33.5 cu-in	1917 cc / 117 cu-in
Bore x Stroke:	68.5 x 68.5 mm	100 x 83 mm	54 x 54 mm	101 x 73 mm		1104.8 x 111.1 mm
Starting:	Kick start	Electric	Kick start	Electric	Electric	Electric
Transmission:	4 Speed, initially hand changed, later by foot	5 Speed	4 Speed gearbox housed in engine block, foot gearchange	6 Speed	CVT Automatic	5 or 6 Speed (6-speed option)
Final Drive:	Chain	With “O” ring chain	Chain	Shaft		Chain with "O" ring
Frame:	Single top and front down tubes and twin tube cradle	Steel tubes and machined light alloy plates compound	Double tubular frame with sidecar adapter.	Main and front frame made of steel tubes, rear frame made of square aluminium tubes, engine with load-bearing function		Main frame tube relevant section stainless steel cradle and slide motor boxed stainless steel frame and box-seat carrier light alloy. Collagamento plates are made of light alloy
Front Suspension:	Webb forks with shock absorbers and steering damper	46mm Telescopic forks	Twin swinging leading link forks with shock absorber and steering damper	BMW Telelever	41mm Inverted fork	48 mm Upside down fork adjustable rebound and preload
Rear Suspension:	Spring loaded seat	Oscillating swingarm, single shock absorber	Swinging fork adjustable for load and road conditions	BMW Paralever	Horizontal Trailing Arm	Swingarm with monoshock teleidraulico, progressive, adjustable rebound and preload.