Polini 911 GP4 Reverse Race - 2007 Specifications and Reviews

The 2007 Polini 911 GP4 Reverse Race is a lightweight minibike engineered for competitive young riders and racing enthusiasts. Powered by a 6.20 hp two-stroke engine, it delivers nimble handling and responsive performance on track. Best known for its purpose-built racing setup, the 911 GP4 excels in junior competition and grassroots motorsport events.

2007
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Engine and Transmission Specifications

ClutchDry with centrifuge counter weights
IgnitionElectronic
Fuel systemCarburettor. PHGB 15
Bore x stroke36.0 x 39.2 mm (1.4 x 1.5 inches)
Power6.20
Engine typeSingle cylinder, two-stroke
Capacity:39.90 ccm (2.43 cubic inches)
 
 

CategoryMinibike, sport
Year2007
ModelPolini 911 GP4 Reverse Race
 
 

Brakes, suspension, Frame and wheels

Rear brakes diameter130 mm (5.1 inches)
Rear brakesSingle disc
Front brakes diameter148 mm (5.8 inches)
Front brakesSingle disc
Rear tyre dimensions110/50-R6.5
Front tyre dimensions90/65-R6.5
Frame typeLatticed tubular frame

Physical measures and capacities

Fuel capacity2.20 litres (0.58 gallons)
Overall width240 mm (9.4 inches)
Overall length960 mm (37.8 inches)
Seat height425 mm (16.7 inches) If adjustable, lowest setting.
Power/weight ratio0.2818 HP/kg
Dry weight22.0 kg (48.5 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsBlue/white
StarterKick

Performance Profile & Rider Fit

6.2 hp
Peak Power

Best For

Track90%
City10%
Cornering85%
Daily Riding5%
Touring2%
Passenger0%

Rider Profile

Best ForThis is a purebred minibike best suited to experienced riders and racers who already know how to handle small, twitchy, high-revving machines on a track or pit-bike circuit.
PurposeBuilt purely for minimoto racing and closed-course fun, not for any kind of practical transportation.
Rider FitIts tiny 425mm seat height and 22kg dry weight mean it is only comfortable and controllable for smaller, lighter riders willing to crouch into a compact racing posture.
CharacterA featherweight, razor-sharp two-stroke racer that rewards aggressive throttle control and tight, flickable cornering over raw speed.
Not Ideal ForThis is not for taller or heavier riders, commuters, passengers, or anyone looking for comfort, storage, or long-distance capability.

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

Rider Reviews

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