Comparison of Beta MINICROSS R 12 and ShineTime ST50 SkyMax-Pro

Attribute	Beta MINICROSS R 12 ×	ShineTime ST50 SkyMax-Pro ×
General
Production from (year)	2007	2012
Make	Beta	ShineTime
Model	Beta MINICROSS R 12	ShineTime ST50 SkyMax-Pro
Category	Minibike, cross	Allround
Engine and transmission
Engine type	Single cylinder, two-stroke	Single cylinder, four-stroke
Fuel system	Carburettor. Dell´Orto SHA 14 - 12L	Carburettor
Displacement (cm³)	49	49
Power (kw)	-	1.9
Cooling system	Air	Air
Transmission type,final drive	Chain	Chain
Bore (mm)	39.5	39
Stroke (mm)	40	39
Gearbox	Automatic	4-speed
Fuel control	-	Single Overhead Cams (SOHC)
Ignition	Electronic	CDI
Clutch	Wet automatic centrifugal type	Wet, multiple disc
Lubrication system	mix with fuel 1,5% (with synthetic oil)	Pressure and splash lubrication
Compression	12.5:1	9.0:1
Chassis
Front suspension	Mechanical fork with ø30 mm shaft	Spring and hydraulic fork
Rear suspension	-	Spring and hydraulic shock
Front brakes	Expanding brake (drum brake). Mechanical drive drum ø90 mm	Single disc
Rear brakes	Expanding brake (drum brake). Mechanical drive drum ø90 mm	Expanding brake (drum brake)
Diameter (mm)	90	155
Frame type	Steel tubing	Steel, Single-tube
Front tyre	-	120/70-12
Rear tyre	-	120/70-12
Front wheel travel (mm)	30	-
Other
Starter	-	Electric & kick
Color options	red	black blue red yellow
Dimensions
Wheelbase (mm)	1,100	1,075
Dry weight (kg)	46	78
Power/weight ratio	-	0.0244
Overall height (mm)	990	950
Overall length (mm)	1,580	1,640
Overall width (mm)	670	620
Seat height (mm)	740	740
Ground clearance (mm)	280	200
Performance
Top speed (km/h)	-	45
Reserve fuel capacity (l)	0.3	-
Fuel capacity (l)	2	5.5