What category is the 2005 Polini 911 GP 3 Junior?

The 2005 Polini 911 GP 3 Junior has a Category of Minibike, sport.

What is the engine size of the 2005 Polini 911 GP 3 Junior?

The 2005 Polini 911 GP 3 Junior has a Capacity: of 39.69 ccm (2.42 cubic inches).

What type of engine does the 2005 Polini 911 GP 3 Junior have?

The 2005 Polini 911 GP 3 Junior has a Engine type of Single cylinder.

What is the engine power of the 2005 Polini 911 GP 3 Junior?

The 2005 Polini 911 GP 3 Junior has a Power of 4.20.

Is the 2005 Polini 911 GP 3 Junior air cooled or liquid cooled?

The 2005 Polini 911 GP 3 Junior has a Cooling system of Air.

How much does the 2005 Polini 911 GP 3 Junior weigh?

The 2005 Polini 911 GP 3 Junior has a Dry weight of 20.5 kg (45.2 pounds).

What is the seat height of the 2005 Polini 911 GP 3 Junior?

The 2005 Polini 911 GP 3 Junior has a Seat height of 395 mm (15.6 inches) If adjustable, lowest setting..

Polini 911 GP 3 Junior - 2005 Specifications and Reviews

Name: 2005 Polini 911 GP 3 Junior
Brand: Polini

The 2005 Polini 911 GP 3 Junior is a lightweight sport minibike designed for young and novice riders seeking entry-level racing experience. Its compact 39cc engine delivers 4.2 horsepower with excellent handling characteristics, making it ideal for developing fundamental motorcycle skills on track or in competition environments.

⇄ Compare against another bike 📅 All Years

2005

❮❯

Add/Upload pictures for this motorcycle

Engine and Transmission Specifications
Clutch	Dry with centrifugal counter weights
Cooling system	Air
Ignition	Electronic
Fuel system	Carburettor
Bore x stroke	36.0 x 39.0 mm (1.4 x 1.5 inches)
Compression	16.5:1
Power	4.20
Stroke	2
Engine type	Single cylinder
Capacity:	39.69 ccm (2.42 cubic inches)

Physical measures and capacities
Overall length	940 mm (37.0 inches)
Seat height	395 mm (15.6 inches) If adjustable, lowest setting.
Dry weight	20.5 kg (45.2 pounds)

Polini 911 GP 3 Junior dimensions and frame
Rear brakes	Single disc
Front brakes	Single disc
Frame type	Lattice tubular frame
Speed and acceleration
Power/weight ratio	0.2049 HP/kg

Category	Minibike, sport
Year	2005
Model	Polini 911 GP 3 Junior
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

4.2 hp

Peak Power

Best For

Track85%

City10%

Cornering80%

Daily Riding5%

Touring5%

Passenger0%

Rider Profile

Best For	This minibike suits young or novice riders learning throttle control, braking, and cornering fundamentals in a low-risk, low-speed environment.
Purpose	It's built for minimoto track days and pit-bike style racing rather than any form of practical transportation.
Rider Fit	Its tiny 395mm seat height and 20.5kg dry weight make it accessible to lightweight junior riders, but adults will find it cramped and impractical.
Character	It has a playful, go-kart-like character, prioritizing flickable agility and fun over outright speed or comfort.
Not Ideal For	It's not for anyone needing real-world commuting capability, passenger carrying, long-distance touring, or high-speed performance.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.