Yamaha YZ125 2027
2027 Yamaha YZ125 Motocross Bike
The 2027 Yamaha YZ125 is the latest evolution of one of the most successful 125cc two-stroke motocross bikes ever built. Combining over 50 years of Yamaha racing innovation with cutting-edge performance, the YZ125 is engineered for riders chasing podium finishes and championship success.
At its heart is a lightweight, race-developed 125cc liquid-cooled two-stroke engine featuring Yamaha’s renowned Yamaha Power Valve System (YPVS). Delivering crisp throttle response, strong low-end torque and explosive top-end power, the YZ125 provides the performance needed to stay competitive from the start gate to the chequered flag.
Built around a lightweight aluminium frame, the YZ125 offers exceptional agility, precise cornering and outstanding rider feedback. Class-leading KYB® suspension provides excellent control over rough circuits and big jumps, while the ultra-slim bodywork allows riders to move freely for maximum confidence both on the ground and in the air.
Whether you’re racing motocross, competing in cross-country events or simply enjoying weekend practice sessions, the 2027 Yamaha YZ125 is built to perform at the highest level.
Key Features
High-performance 125cc liquid-cooled two-stroke engine
Yamaha Power Valve System (YPVS) for strong, usable power
Lightweight race-developed engine components
Lightweight aluminium frame for precise handling
Class-leading KYB® suspension
Slim, race-focused ergonomics
Sharp YZ styling inspired by Yamaha’s factory race bikes
Built for motocross competition straight from the showroom
Legendary Yamaha reliability and race-winning heritage
With its lightweight chassis, responsive engine and championship-proven technology, the 2027 Yamaha YZ125 continues to set the benchmark for riders looking for a competitive two-stroke motocross machine.
Engine
Engine TypeLiquid-cooled, 2-stroke, reed-valve
Displacement (cc)125.0
Bore x Stroke (mm)54.0 x 54.5
Compression Ratio8.2 - 10.1 : 1
Lubrication SystemPremix
Fuel ManagementPWK38S
IgnitionCDI
Starter SystemKick
Fuel Tank Capacity (L)7.0
Final TransmissionChain
TransmissionConstant mesh 6-speed
Chassis
Frame TypeAluminium controlled filled semi double cradle
Suspension FrontTelescopic forks, 300mm travel
Suspension RearSwingarm (link suspension), 315mm travel
Brakes FrontHydraulic single disc, 270mm
Brakes RearHydraulic single disc, 240mm
Tyres Front80/100-21 51M Tube type
Tyres Rear100/90-19 57M Tube type
Dimensions
Length (mm)2135
Width (mm)825
Height (mm)1295
Seat Height (mm)980
Wheelbase (mm)1445
Ground Clearance (mm)365
Wet Weight (kg)96

