Polini 910 GP4 Air Junior
2007Minibike

Polini 910 GP4 Air Junior

Key specifications

Engine
40 cc
Power
4 HP
Weight
21 kg
Fuel type
petrol
Seat height
16 mm
Front brakes
Single disc
Rear brakes
Single disc. 130

Technical details

Source specification data

Make
Polini
Model
910 GP4 Air Junior
Category
Minibike-sport
Starter
Kick
Color Options
Blue/white
Power
4.20 HP (3.1 kW))
Clutch
Dry with centrifuge counter weights
Ignition
Electronic with inductive discharge
Fuel System
Carburettor. SHA 14-14
Bore X Stroke
36.0 x 39.0 mm (1.4 x 1.5 inches)
Compression
14.0:1
Displacement
39.69 ccm (2.42 cubic inches)
Cooling System
Air
Engine Details
Single cylinder, two-stroke
Transmission Type Final Drive
Chain
Dry Weight
20.5 kg (45.2 pounds)
Seat Height
395 mm (15.6 inches) If adjustable, lowest setting.
Overall Width
240 mm (9.4 inches)
Overall Length
940 mm (37.0 inches)
Power Weight Ratio
0.2049 HP/kg
Rear Tyre
90/65-R6.5
Frame Type
Latticed tubular frame
Front Tyre
90/65-R6.5
Rear Brakes
Single disc. 130
Front Brakes
Single disc
Front Brakes Diameter
148 mm (5.8 inches)

Available colors

Blue/white