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Polini 910 GP4 Air Junior

Engine and Transmission

The Polini 910 GP4 Air Junior is a 2 stroke, Pocket Bike bike with a Air cooled 39.69 ccm (2,41 cubic inches) Single cylinder type of engine. This engine then gets the power to the rear wheel with a Chain driven transmission.

This engine has 4.20 HP (3.1 kW and an unconfirmed top speed.

Wheels and Tyres

If you are looking for Polini 910 GP4 Air Junior Tyres then you will need to look for the correct sizes. On this model the Front Tyre size is 90/65 - R6.5 and the Rear Tyre size is 90/65 - R6.5 so before buying a tyre, check that it is the correct size.

Braking Information

To stop this 20.5 kg (44,97 pounds) bike you will need decent brakes. The Polini 910 GP4 Air Junior comes with Single disc brakes on the front and Single disc. 130 brakes on the rear to ensure you will stop quickly if you need to.

Polini 910 GP4 Air Junior Technical Information
Type of Bike: Pocket Bike Year: 2007 Engine Capacity: 39.69 ccm (2,41 cubic inches) Engine Type: Single cylinder
Engine Power: 4.20 HP (3.1 kW Torque: N/A Compression: 14.0:1 Stroke: 2
Starter Type: Kick Top Speed: N/A Transmission: Chain Gearbox: N/A
Fuel Capacity: N/A Fuel Control: N/A Valves: N/A Cooling System: Air
Bike Weight: 20.5 kg (44,97 pounds) Bike Length: 940 mm (36,82 inches) Front Brakes: Single disc Rear Brakes: Single disc. 130
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