2026 Yamaha YZ125X Base
Exterior Colors:
- Year 2026
- Make Yamaha
- Model YZ125X
2026 Yamaha YZ125X
The YZ125X sets the standard for light, fast two-stroke fun! The perfect entry into the world of XC and enduro competition, this two-stroke trailblazer combines thrilling performance and ultimate reliability for all your wins.
Features may include:
Powerful New 125cc Two-Stroke Engine- A completely redesigned liquid-cooled 125cc two-stroke engine boasts improved usability and increased mid- and top-end power over the 2022 model for a thrilling new level of performance.
- New high-precision Hitachi Astemo® Keihin PWK38S carburetor features a power jet, throttle position sensor and 3D-map-controlled CDI unit for precise ignition timing. The result is clean, crisp throttle response, superior rideability and excellent over-rev character.
- reduced weight (no heavy iron liner)
- reduced friction
- extended cylinder life
- excellent heat dissipation for consistent power delivery
- combines with compact engine to provide an awesome power to weight ratio
- obvious benefit of an aluminum frame is a significant weight reduction
- Yamaha maintains semi-double cradle design because it offers an excellent rigidity balance between lateral and torsional rigidity while offering controlled flex in the longitudinal plane
- constructed of square-section, lightweight aluminum
- detachable design allows easy access when servicing rear suspension components
Engine
Engine Type
2-stroke, reed-valve, single
Cooling System
Liquid-cooled
Bore
54.0 mm
Stroke
54.5 mm
Compression Ratio
7.8~10.2:1
Fuel System
Hitachi Astemo® Keihin PWK38S
Ignition
CDI
Starter
Kick
Drivetrain
Transmission
Constant mesh, 6-speed
Final Drive
Chain
Suspension
Front Suspension
Fully adjustable 48 mm KYB inverted fork
Rear Suspension
Fully adjustable KYB link Monocross
Brakes
Front braking system
270 mm floating disc / twin piston caliper
Rear braking system
240 mm disc / single piston caliper
Wheels & Tires
Front Tire
80/100-21
Rear Tire
110/100-18
Front Wheel Travel
300 mm (11.8")
Rear Wheel Travel
315 mm (12.4")
Dimensions
Length
2,154 mm (84.8")
Width
825 mm (32.5")
Height
1,290 mm (50.8")
Wheelbase
1,455 mm (57.3")
Ground Clearance
356 mm (14")
Seat Height
970 mm (38.2")
Capacities
Fuel Capacity
8 litres (1.8 imp. gallons)
Weights
Weight
Wet: 96 kg (212 lb)
Color
Colors
Team Yamaha Blue