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MC 125​

The 2025 GasGas MC 125 is the pinnacle of small-bore two-stroke motocross, blending exhilarating power with rider-friendly handling for maximum track excitement. Its updated frame—featuring refined motor mounts and optimised flex characteristics—offers improved agility through corners without sacrificing straight-line stability. With bold all-red in-mould graphics and grippy ergonomic bodywork, the MC 125 looks factory-fresh and invites dynamic rider movement from the moment it fires.​​

 Refined Engine & Responsive Delivery A high-performance 124.8 cc two-stroke engine forms the core of this machine, delivering clean, responsive power via throttle-body fuel injection and an intelligent exhaust control system. The result is seamless, precise throttle feel and a strong mid-range delivery suited to varied track conditions. A premium six-speed gearbox by a leading race supplier, coupled with a lightweight diaphragm steel clutch, ensures crisp shifting and built-in durability. Every twist releases a balanced wave of power, empowering you to carry momentum and stay in tune with the track rhythm.
Enhanced Chassis & Suspension Dynamics The chassis has been carefully honed for both agility and control: weight-shedding in critical areas has improved flex, while chassis geometry refinements allow for sharper turn entry and more secure handling. Suspension duties are managed by 48 mm WP XACT air forks up front—complete with easy adjustability and hydrostop technology—and a 300 mm WP XACT rear shock featuring low-friction linkage seals. These elements work harmoniously to soak up rough terrain, maintain composure over jumps, and keep the bike rooted in the rhythm sections.
Race-Grade Features & Practical Durability Equipped with high-spec components, the MC 125 doesn’t compromise on performance. Braktec hydraulic brakes offer powerful, modulation-friendly stopping, while large, mud-shedding footpegs and a reinforced rear brake pedal enhance rider confidence in rugged conditions. Cooling is handled by durable aluminium radiators centrally mounted for balanced weight distribution, and maintenance is streamlined with easy-access airbox and filter arrangements. Light, strong spoked wheels and Maxxis tyres ensure consistent traction—and durability—ride after ride.
SPECIFICATION

PRICE

Starting from £8,299

ENGINE & TRANSMISSION

Transmission 6-speed

Battery capacity 2 Ah

Cooling Liquid cooled

Starter Electric starter

Stroke 54.5 mm

Bore 54 mm

Clutch DS wet multi-disc clutch, Braktec hydraulics

Displacement 124.8 cm³

EMS Vitesco Technologies EMS

Design 1-cylinder, 2-stroke engine

Fuel-mixture generation Keihin EFI, throttle body 39 mm

CHASSIS

Weight (without fuel) 92.8 kg

Tank capacity (approx.) 7.9 l

Wheelbase 1493 mm

Front brake disc diameter 260 mm

Rear brake disc diameter 220 mm

Chain 520, Non-sealed

Frame design Central double-cradle-type 25CrMo4 steel

DIMENSIONS & WEIGHTS

Front suspension WP XACT-USD (AER), Ø 48 mm

Ground clearance 354 mm

Handlebar Neken, aluminium Ø 28/22 mm

Rear suspension WP XACT Monoshock with linkage

Seat height 956 mm

Silencer Aluminium

Steering head angle 63.9 °

Rear subframe design Aluminium

Suspension travel (front) 310 mm

Suspension travel (rear) 300 mm

Wheels Spoked wheels with aluminium rims

FUEL CONSUMPTION

 

STANDARD EQUIPMENT

 

OPTIONAL EQUIPMENT

 

OPTIONAL ACCESSORIES

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