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2009 Derbi Dirt Boy 50 Specs

General ─░nformation

Model Derbi Dirt Boy 50
Year 2009
Category Minibike, cross

Engine and transmission

Displacement 49.90 ccm (3.04 cubic inches)
Compression 12.0:1
Bore x stroke 39.0 x 41.8 mm (1.5 x 1.6 inches)
Fuel system Carburettor. 14 mm
Ignition CDI
Lubrication system Oil pump
Cooling system Air
Gearbox 1-speed

Chassis, suspension, brakes and wheels

Front suspension Hydraulic fork.
Front wheel travel 120 mm (4.7 inches)
Rear suspension Monoshock.
Rear wheel travel 140 mm (5.5 inches)
Frame 2.50-12
Front tyre 2.50-12
Rear tyre 2.75-10
Front brakes Single disc
Front brakes diamete 160 mm (6.3 inches)
Rear brakes Expanding brake (drum brake)
rear_brakes_diameter 90 mm (3.5 inches)

Physical measures and capacities

Dry weight 47.0 kg (103.6 pounds)
Seat height 610 mm (24.0 inches) If adjustable, lowest setting.
Overall length 1,290 mm (50.8 inches)
Overall width 519 mm (20.4 inches)
Wheelbase 905 mm (35.6 inches)
Fuel capacity 2.30 litres (0.61 gallons)
Oil capacity 0.60 litres (0.04 quarts)

Other specifications

Color options Black/white
Starter Kick
Comments Spanish made bike. Intended for child use.
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