2026 GasGas Motocross

Next-level offroad enjoyment

2026 GasGas Motocross

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GASGAS MC 125 2026

Next-level offroad enjoyment

RRP: £7,999.00
  • The sound of a 125cc 2-stroke ripping around a motocross track is one of life's simple pleasures! Step forward, the awesome MC 125. This little ripper is fully equipped with everything you'll need to find the fastest way around any circuit. We're talking a powerful motor, a frame with smooth handling, a close-ratio 6-speed gearbox, plush WP suspension, and strong brakes. Yep, that's right, our MC 125 is the real deal, and it sits proudly at the top of the small-bore pre-mix class!
Motocross
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Tech Specs

Engine

  • Design: Single-cylinder, 2-stroke engine
  • Displacement: 124.8 cm³
  • Bore × Stroke: 54 × 54.5 mm
  • Cooling: Liquid-cooled
  • Starter: Electric starter
  • Fuel-Mixture Generation: Keihin EFI, throttle body Ø 39 mm
  • EMS: Vitesco Technologies EMS
  • Clutch: DS wet multi-disc clutch with Braktec hydraulics
  • Primary Drive: 23 / 73
  • Secondary Gear Ratio: 13 / 50
  • Transmission: 6-speed

Battery

  • Battery Capacity: 2 Ah

Chassis

  • Frame Design: Central double-cradle-type 25CrMo4 steel
  • Rear Subframe Design: Aluminium
  • Wheelbase: 1493 ± 10 mm
  • Ground Clearance: 354 mm
  • Seat Height: 956 mm
  • Steering Head Angle: 63.9°
  • Handlebar: Neken aluminium Ø 28 / 22 mm
  • Silencer: Aluminium
  • Chain: 520, non-sealed
  • Weight (Without Fuel): 92.5 kg

Fuel Tank

  • Capacity: 7.9 L (approx.)

Front Suspension

  • Type: WP XACT USD (AER)
  • Fork Diameter: Ø 48 mm
  • Suspension Travel: 310 mm

Rear Suspension

  • Type: WP XACT monoshock with linkage
  • Suspension Travel: 300 mm

Brakes

  • Front Brake: Disc brake Ø 260 mm
  • Rear Brake: Disc brake Ø 220 mm

Wheels & Tyres

  • Front Wheel: 1.60 × 21"
  • Rear Wheel: 2.15 × 19"
  • Wheels: Spoked wheels with aluminium rims
  • Front Tyre: 80 / 100
  • Rear Tyre: 100 / 90

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About John Lee Motorcycles

John started work in the Motorcycle Trade in 1955, working for 2 large London Dealers for 10 years. His ambition was to own his own dealership, so moved to Northamptonshire and purchased the shop where we are today in Higham Ferrers, that was 1964.

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