Polini XP4 Street 125 Off Road - 2010 Specifications and Reviews

The 2010 Polini XP4 Street 125 is a lightweight enduro bike ideal for novice off-road riders and urban commuters seeking adventure. Its air-cooled 121cc four-stroke engine delivers manageable power with excellent fuel efficiency, while the adjustable monoshock and hydraulic fork provide capable trail-ready handling for both street and dirt riding.

2010
4 stars Average rating: 4 from 2 votes
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General information

CategoryEnduro / offroad
Year2010
ModelPolini XP4 Street 125 Off Road

Engine and Transmission Specifications

Exhaust systemEuro 3
ClutchMultidisc in oilbath
Transmission type,final driveChain
Gearbox4-speed
Cooling systemAir
Bore x stroke52.4 x 56.0 mm (2.1 x 2.2 inches)
Compression9.5:1
Engine typeSingle cylinder, four-stroke
Capacity:120.70 ccm (7.37 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakes diameter150 mm (5.9 inches)
Rear brakesSingle disc. Hydraulic
Front brakes diameter200 mm (7.9 inches)
Front brakesSingle disc. Hydraulic
Rear tyre dimensions80/100-12
Front tyre dimensions60/100-14
Rear suspensionMonoshock, adjustable
Front suspensionHydraulic fork, 33 mm
 
 

Physical measures and capacities

Oil capacity1.20 litres (0.08 quarts)
Fuel capacity3.00 litres (0.79 gallons)
Wheelbase1,150 mm (45.3 inches)
Seat height800 mm (31.5 inches) If adjustable, lowest setting.
Dry weight70.0 kg (154.3 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsBlack
StarterElectric & kick

Performance Profile & Rider Fit

Best For

Track20%
City35%
Cornering55%
Daily Riding20%
Touring10%
Passenger5%

Rider Profile

Best ForThis machine suits younger or smaller riders, including beginners, thanks to its light weight and modest displacement.
PurposeBuilt as a small-capacity minibike for casual off-road play, pit riding, and learning basic dirt riding skills rather than serious enduro work.
Rider FitIts very low dry weight and 800mm seat height make it easy to manage for lighter or shorter riders, including teens.
CharacterA playful, nimble minibike with a simple four-stroke engine that rewards light inputs and easy handling over outright performance.
Not Ideal ForNot suitable for taller or heavier adults seeking real touring range, highway speed, or serious offroad trail performance.

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

Rider Fit Visualizer

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

Feet:

At 800mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2010 Polini XP4 Street 125 Off Road, with a cramped knee angle of around 70 degrees and an upright 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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