Sonik GPX 125 - 2013 Specifications and Reviews

The 2013 Sonik GPX 125 is an entry-level allround motorcycle designed for novice riders and commuters seeking affordable, reliable transportation. Powered by a modest 124cc single-cylinder four-stroke engine, it delivers practical performance with a top speed of 85 km/h and excellent fuel efficiency. Best known for its simplicity, durability, and budget-friendly pricing, this lightweight bike excels as an introductory motorcycle for developing riding skills.

2013
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General information

CategoryAllround
Year2013
ModelSonik GPX 125

Engine and Transmission Specifications

ClutchManual Wet Multi-Plate
Transmission type,final driveChain
Gearbox5-speed
Cooling systemAir
IgnitionCDI
Fuel systemCarburettor
Bore x stroke56.5 x 49.5 mm (2.2 x 1.9 inches)
Compression9.2:1
Top speed85.0 km/h (52.8 mph)
Torque8.60 Nm (0.9 kgf-m or 6.3 ft.lbs) @ 7000
Power10.73
Engine typeSingle cylinder, four-stroke
Capacity:124.04 ccm (7.57 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakesExpanding brake (drum brake)
Front brakesSingle disc
Rear tyre dimensions3.00-18
Front tyre dimensions2.75-18
Rear suspensionHydraulic shock absorber (adjustable)
Front suspensionHydraulic fork
Frame typeSteel
 
 

Physical measures and capacities

Fuel capacity15.00 litres (3.96 gallons)
Wheelbase1,300 mm (51.2 inches)
Seat height790 mm (31.1 inches) If adjustable, lowest setting.
Power/weight ratio0.0909 HP/kg
Dry weight118.0 kg (260.1 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
CommentsChinese brand.
Color options     
StarterElectric & kick

Performance Profile & Rider Fit

10.7 hp
Peak Power
52.8 mph
Top Speed

Best For

Track5%
City65%
Cornering35%
Daily Riding55%
Touring20%
Passenger25%

Rider Profile

Best ForThis is an entry-level machine best suited to beginner riders or those just starting out on two wheels.
PurposeIt's designed as a simple, low-cost commuter for short trips around town rather than for speed or distance.
Rider FitIts low seat height and light weight make it very manageable for riders of smaller stature or less strength.
CharacterIt has an unpretentious, budget-friendly personality with modest performance and basic componentry throughout.
Not Ideal ForIt is not suitable for riders seeking highway speeds, long-distance touring comfort, or serious off-road capability.

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

Rider Fit Visualizer

2013 Sonik GPX 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 2013 Sonik GPX 125, with a moderate knee angle of around 115 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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