Polini 911 GP5 Reverse 50 - 2011 Specifications and Reviews

The 2011 Polini 911 GP5 Reverse 50 is a lightweight sport mini motorcycle designed for young riders and beginners seeking an affordable entry into racing. Weighing just 20.5kg with a compact 1,160mm length and low 460mm seat height, it excels in closed-track training and mini GP competition. Known for its nimble handling and responsive performance, this pocket rocket delivers pure racing thrills in a manageable package.

2011
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Engine and Transmission Specifications

ClutchDry centrifugal
Transmission type,final driveChain
Cooling systemAir
Lubrication system2% mixture
Fuel systemCarburettor. PHGB 19, reed valve in the crankcase
Bore x stroke40.0 x 39.0 mm (1.6 x 1.5 inches)
Compression16.5:1
Engine detailsAluminium cylinder
Engine typeSingle cylinder, two-stroke
Capacity:49.30 ccm (3.01 cubic inches)
 
 

CategoryMinibike, sport
Year2011
ModelPolini 911 GP5 Reverse 50
 
 

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
Rear suspensionSwing arm
Front suspensionTelescopic fork
Frame typeLatticed tubular frame

Physical measures and capacities

Fuel capacity1.50 litres (0.40 gallons)
Overall width240 mm (9.4 inches)
Overall length1,160 mm (45.7 inches)
Seat height460 mm (18.1 inches) If adjustable, lowest setting.
Dry weight20.5 kg (45.2 pounds)

Other specs

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

Performance Profile & Rider Fit

Best For

Track90%
City20%
Cornering90%
Daily Riding10%
Touring5%
Passenger0%

Rider Profile

Best ForBest suited to riders who already understand minibike or pit-bike handling dynamics, since the tiny scale and razor-sharp reflexes punish clumsy inputs.
PurposeThis is a pure minibike built for tight-track sport riding, pit-bike racing, and honing cornering technique at low cost and low risk.
Rider FitIts 20.5 kg dry weight and 460 mm seat height mean it suits smaller or lighter riders, though the compact ergonomics can feel cramped for tall adults.
CharacterPlayful, flickable, and eager to change direction, this little two-stroke rewards aggressive throttle and body-steering with go-kart-like agility.
Not Ideal ForNot for anyone wanting real-world transportation, passenger carrying, long-distance comfort, or off-road capability, since it has no lights, minimal fuel range, and tiny wheels.

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

Rider Reviews

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