WK SX 125 - Specifications & Review

Article Complete Info

Articleid957052
CategorySuper motard
MakeAprilia
ModelSX 125
Year2024

Chassis, Suspension, Brakes & Wheels

FrametypeTwin-tube steel
FrontbrakesSingle disc. Floating calliper
Frontbrakesdiameter300 mm (11.8 inches)
FrontsuspensionUpside down fork with Ø 41 mm stanchions.
Fronttyre100/80-R17
Frontwheeltravel240 mm (9.4 inches)
RearbrakesSingle disc. Floating calliper
Rearbrakesdiameter220 mm (8.7 inches)
RearsuspensionSteel swingarm, monoshock with progressive link system
Reartyre130/70-R17
Rearwheeltravel210 mm (8.3 inches)
WheelsAluminium spoked wheel.

Engine & Transmission

Borexstroke58.0 x 47.0 mm (2.3 x 1.9 inches)
ClutchMulti Plate Wet
Compression12.6:1
CoolingsystemLiquid
Displacement124.2 ccm (7.58 cubic inches)
DrivelineDrive ratio 13/62
EmissiondetailsEuro 5
EnginetypeSingle cylinder, four-stroke
Fuelconsumption2.60 litres/100 km (38.5 km/l or 90.47 mpg)
FuelsystemInjection
Gearbox6-speed
Greenhousegases60.3 CO2 g/km. (CO2 - Carbon dioxide emission)
IgnitionECU Electronics Magneti Marelli MIUG4 ø 32 mm
LubricationsystemWet sump
Torque11.2 Nm (1.1 kgf-m or 8.3 ft.lbs) @ 8000 RPM
TransmissiontypefinaldriveChain (final drive)
Valvespercylinder4

Other Specifications

ColoroptionsRed Flash, Yellow Stark, Silver Alien, Black Spider, White Wonder
InstrumentsDigital dashboard
StarterElectric

Physical Measures & Capacities

Fuelcapacity7.00 litres (1.85 US gallons)
Overallheight1140 mm (44.9 inches)
Overalllength2075 mm (81.7 inches)
Overallwidth820 mm (32.3 inches)
Seatheight880 mm (34.6 inches) If adjustable, lowest setting.
Weightincloilgasetc134.0 kg (295.4 pounds)

About WK

Country of Origin: United Kingdom (brand/distributor)
Founder: WK Bikes (MotoGB group)
Best Known For: Value 50–400 cc scooters/motorcycles for UK learners

Company History

WK curates globally manufactured small-capacity bikes for the UK, focusing on EU compliance, ABS/CBS where required, and reliable EFI. The proposition is clear: approachable prices, dealer parts backing, and models that fit A1/A2 license tiers. By sweating PDI and documentation, WK helps first-time owners avoid teething pains and builds confidence in daily commuting. The badge represents distributor excellence turning commodity hardware into trustworthy transport.

Other Years

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