Polini XP 4 Street 125 - 2008 Specifications and Reviews

The 2008 Polini XP 4 Street 125 is a lightweight supermoto designed for riders seeking nimble urban performance and entry-level sport riding. Its air-cooled single-cylinder engine delivers accessible power with reliable kick and electric starting options, making it ideal for commuters and novice riders appreciating agile handling and manageable maintenance.

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General information

CategorySuper motard
Year2008
ModelPolini XP 4 Street 125

Engine and Transmission Specifications

ClutchMultidisc in oilbath
Transmission typefinal driveChain
Gearbox4-speed
Cooling systemAir
StarterElectric & kick
IgnitionElectronic
Fuel systemCarburettor. Mikuni 22
Bore x stroke52.4 x 56.0 mm (2.1 x 2.2 inches)
Compression9.5:1
Stroke4
Engine typeSingle cylinder
Capacity:120.70 ccm (7.37 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, etc68.5 kg (151.0 pounds)
 
 

Polini XP 4 Street 125 dimensions and frame

Rear tyre dimensions3.50-10
Front tyre dimensions3.50-10
Rear suspensionMonoshock
Front suspensionHydraulic fork

Speed and acceleration

Color optionsGrey/blue
Fuel capacity3.00 litres (0.79 gallons)

Other specs

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

Performance Profile & Rider Fit

Best For

Track40%
City80%
Cornering70%
Daily Riding45%
Touring15%
Passenger10%

Rider Profile

Best ForThis tiny supermoto-style minibike suits newer or younger riders, or experienced riders looking for a fun, low-stakes toy.
PurposeIt's built for playful, short-distance urban riding and messing around rather than serious transportation or performance riding.
Rider FitIts very low seat height and featherweight 68.5 kg build make it extremely easy and unintimidating to handle for almost any rider size.
CharacterIt has a cheeky, go-kart-like personality with mini 10-inch wheels and supermotard styling that rewards flickable, playful riding.
Not Ideal ForIt is not suitable for highway travel, long-distance touring, or riders needing serious power and stability at speed.

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 125 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

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 125, 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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