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125 4T SM RS Factory - 2026 Specifications and Reviews

The Sherco 125 4T SM-RS Factory is a lightweight supermotard built for agile riders seeking nimble street and track performance. Its liquid-cooled single-cylinder engine delivers responsive power ideal for urban commuting and weekend circuits. Known for its sharp handling and manageable power delivery, it suits beginners to intermediate riders developing their skills.

2026
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General information

Color OptionsBlue/white/green
CategorySuper motard
ModelSherco 125 4T SM-RS Factory
 
 

Engine and Transmission Specifications

StartingElectric
ClutchHydraulic, wet, multi-plate
Final DriveChain (final drive)
Gearbox6-speed
Cooling SystemLiquid
IgnitionDC-CDI
InductionCarburettor. Keihin PWK 28
Bore x Stroke52.0 x 58.6 mm (2.0 x 2.3 inches)
Engine DetailsSherco engine
Capacity124.5 ccm (7.59 cubic inches)

Physical measures and capacities

Fuel Capacity8.00 litres (2.11 US gallons)
Wheelbase1408 mm (55.4 inches)
Ground Clearance284 mm (11.2 inches)
Seat Height898 mm (35.4 inches) If adjustable, lowest setting.

125 4T SM RS Factory dimensions and frame

WheelsBlack rims with Michelin tires.
Rear BrakesSingle disc
Brake Disc Diameter180 mm (7.1 inches)
Front BrakesSingle disc
Rear Tyre130/70-17
Front Tyre100/80-17
Rear Wheel Travel67 mm (2.6 inches)
Rear SuspensionSingle shock absorber
Front Wheel Travel253 mm (10.0 inches)
Front SuspensionUSD 41 mm
FrameSemi-perimeter high-strength chrome-molybdenum steel

Other specs

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CommentsFrench brand.
Exhaust systemAluminium Silencer with carbon end cap
Lubrication system2% oil pre-mix
Engine typeSingle cylinder, two-stroke
Year2025

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