2025 Yamaha YZ125X Base

2025 Yamaha YZ125X Base

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  • Retail Price $7,199.00

Exterior Colors:

  • Year 2025
  • Make Yamaha
  • Model YZ125X
2025 Yamaha YZ125X Base

2025 Yamaha YZ125X Base

2025 Yamaha YZ125X

TWO-STROKE TRAILBLAZER

The YZ125X sets the standard for light, fast two-stroke fun! The perfect entry into the world of XC and enduro competition.

Features may include:

TOP FEATURES

Two-Stroke Power: Tuned for Enduro Racing

The YZ125X is optimized for the unique demands of Hare Scrambles and GNCC® racing. The powerful Yamaha Power Valve System (YPVS™)-equipped 125cc two-stroke engine is mated to a six-speed transmission for the ultimate cross country powerplant.

Lightweight Aluminum Frame

Ultra-lightweight YZ125-spec aluminum semi-double cradle frame is engineered to provide the perfect balance of rigidity and flex for competition-ready handling character and composure.

High Performance Braking System

High-spec front and rear brake setup offer exceptional power and feel, while reducing unsprung weight.

ENGINE

Powerful 125cc Two-Stroke Engine

The YZ125X's advanced, liquid-cooled 125cc two-stroke engine provides impressive acceleration, thrilling mid- to high-rpm power, along with supreme usability.

Tuned for GNCC® Competition

The YZ125X utilizes a revised compression ratio, revised YPVS™ timing and a model-specific digital CDI unit compared to its motocross sibling"”all focused on creating a broad, usable power delivery specifically suited to cross country and enduro-style competition.

Efficient Air Intake Design

Intake design allows for a straighter, more efficient draw of air into the intake tract.

CHASSIS/SUSPENSION

Lightweight Frame

Race-proven, highly developed aluminum semi-double cradle frame is engineered to provide the perfect balance of rigidity and flex for competition-ready handling character and composure. Removable aluminum rear subframe is constructed of square-section tubing for reduced weight.

Industry-Leading KYB® Fork

Tuned for the demands of cross country racing, the Speed Sensitive System 48mm inverted KYB® fork includes a leaf spring in the mid-speed valve for more precise damping and increased comfort, while offering up 11.8 inches of travel. Additionally, a scraper between the dust and oil seal improves reliability in cross country conditions. New for 2025, the fork now includes a hand-adjustable knob for quick, toolless compression adjustments.

Advanced KYB® Shock

Fully adjustable KYB® rear shock features reduced-friction Kashima Coat™ internals, separate adjusters for high- and low-speed compression damping, a full lock oil rebound system for increased comfort, and 12.4 inches of travel. It all adds up to fantastic rear wheel control and class-leading capability.

ADDITIONAL FEATURES

Bold YZ Styling

Along with slim, aggressive bodywork, the bold graphics scheme further highlights the YZ family pedigree. Premium Yamaha graphics are now embedded to provide excellent durability and scratch resistance.

Cross Country Ergonomics

A racy "gripper"-type seat and narrow fuel tank combined with a tapered aluminum handlebar and adjustable mounts create greater freedom of movement and more comfortable ergonomics for riders.

Cross Country Features

The YZ125X is focused on enduro competition with an 18-inch rear wheel, larger rear sprocket, side stand, sealed O-ring chain, reserve fuel petcock and a new water-resistant PVC handle bar pad, all adding up to exceptional cross country performance.

Engine

Engine Type 2-stroke; reed-valve inducted
Displacement 125cc
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

Drivetrain

Transmission 6-speed; multiplate wet clutch
Final Drive Chain

Suspension

Front Suspension KYB® Speed-Sensitive System inverted fork; fully adjustable, 11.8-in travel
Rear Suspension KYB® single shock; fully adjustable, 12.4-in travel
Front Travel (in./cm.) 11.8-in travel
Rear Travel (in./cm.) 12.4-in travel

Brakes

Front braking system Hydraulic disc, 270mm
Rear braking system Hydraulic disc, 240mm

Wheels & Tires

Front Tire 80/100-21 Dunlop® Geomax MX33F
Rear Tire 110/100-18 Dunlop® Geomax MX33

Dimensions

Wheelbase 57.3 in
Seat Height 38.2 in
Rake/trail 26.4°/4.4 in
Ground Clearance 14.0 in
Overall Vehicle Size (LxWxH) 84.8 in x 32.5 in x 50.8 in

Capacities

Fuel Capacity 1.8 gal

Weights

Weight 212 lb

Warranty

Warranty 30 Day (Limited Factory Warranty)

Product Photography