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Hyosung SF50B Prima - 2011 Specifications and Reviews

2011
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Engine and Transmission Specifications

DrivelineCVT
ClutchCentrifugal automatic clutch
Transmission type,final driveBelt
GearboxAutomatic
Cooling systemAir
Fuel systemCarburettor
Bore x stroke41.0 x 37.4 mm (1.6 x 1.5 inches)
Compression7.2:1
Torque3.80 Nm (0.4 kgf-m or 2.8 ft.lbs) @ 6500
Power5.00
Engine typeSingle cylinder, two-stroke
Capacity:49.00 ccm (2.99 cubic inches)

CategoryScooter
Year2011
ModelHyosung SF50B Prima
 
 

Brakes, suspension, Frame and wheels

Rear brakesExpanding brake (drum brake)
Front brakes diameter162 mm (6.4 inches)
Front brakesSingle disc
Rear tyre dimensions120/70-12
Front tyre dimensions110/70-12
Rear suspensionMono Shock Absorber (Preload adjustable)
Front suspensionConventional Telescopic

Physical measures and capacities

Fuel capacity4.73 litres (1.25 gallons)
Wheelbase51 mm (2.0 inches)
Ground clearance6 mm (0.2 inches)
Seat height29 mm (1.1 inches) If adjustable, lowest setting.
Power/weight ratio0.0568 HP/kg
Dry weight88.0 kg (194.0 pounds)

Other specs

Wheelbase1,250 mm (49.2 inches)
Overall width1,170 mm (46.1 inches)
Overall length1,835 mm (72.2 inches)
Overall height1,155 mm (45.5 inches)
Rear brakes diameter240 mm (9.4 inches)
Rear tyre255/55-9
Front tyre175/75-10
Rear Suspension Aluminum alloy swing arm,
Front SuspensionIndependent double A-arm,
Lubrication systemSemi dry sump
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Valves per cylinder4
Bore x Stroke96.0 x 62.0 mm (3.8 x 2.4 inches)
Compression12.0:1
Torque47.64 Nm (4.9 kgf-m or 35.1 ft.lbs) @ 7000 Revolutions">RPM
Capacity:448.80 ccm (27.39 cubic inches)
ModelHyosung Rapier 450 Quad
Color optionsBlue, red
Factory warranty2 Year
StarterElectric

Rider Reviews

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