Polini XP 4 Street 50 - 2008 Specifications and Reviews

The 2008 Polini XP 4 Street 50 is a lightweight super motard designed for novice riders and urban commuters seeking nimble handling and easy maneuverability. Powered by a 49cc single-cylinder four-stroke engine with a Mikuni carburetor, it delivers modest performance ideal for learning fundamentals. Known for its compact dimensions and accessible 790mm seat height, this bike excels in city environments and tight traffic situations.

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Engine and Transmission Specifications

ClutchMultidisc in oilbath
Transmission typefinal driveChain
Gearbox4-speed
Cooling systemAir
IgnitionElectronic
Fuel systemCarburettor. Mikuni 16
Bore x stroke39.0 x 41.0 mm (1.5 x 1.6 inches)
Stroke4
Engine typeSingle cylinder
Capacity:49.00 ccm (2.99 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,150 mm (45.3 inches)
Seat height790 mm (31.1 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc68.0 kg (149.9 pounds)

Polini XP 4 Street 50 dimensions and frame

Rear tyre dimensions3.50-10
Front tyre dimensions3.50-10
 
 

CategorySuper motard
Year2008
ModelPolini XP 4 Street 50

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track25%
City70%
Cornering55%
Daily Riding40%
Touring10%
Passenger10%

Rider Profile

Best ForThis tiny 50cc supermotard-styled minibike suits beginners, younger riders, or hobbyists looking for a fun low-stakes machine rather than experienced riders seeking real performance.
PurposeIt is built for playful, low-speed urban messing about and minibike track days rather than any serious speed or distance riding.
Rider FitIts very low seat height, tiny 68kg dry weight, and 10-inch wheels make it extremely easy to handle for smaller or lighter riders, though tall or heavy riders will feel cramped.
CharacterExpect a light, flickable, go-kart-like feel with sharp steering thanks to the small wheels and minimal weight, but very limited top speed from the 49cc air-cooled single.
Not Ideal ForThis is not for riders wanting highway capability, long-distance touring, passenger carrying, or genuine off-road adventure.

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

Rider Fit Visualizer

2008 Polini XP 4 Street 50 Rider Ergonomics Assessment

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Feet:

At 790mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2008 Polini XP 4 Street 50, with a moderate knee angle of around 110 degrees and a slightly forward riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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