Yamaha YZ125 Specs, Top Speed, Price, Mileage, Review

『2024』Yamaha YZ125 Specs, Top Speed, Price, Mileage, Review

Yamaha YZ125 specs, Top Speed, Horsepower, Price, and mileage are listed below. 

The specifications of the Yamaha YZ125, include its Top Speed, weight, MPG, horsepower, Seat Height, and other aspects.

Yamaha has equipped this motocrosser with a 125cc single-cylinder, two-stroke 125cc engine. The Yamaha YZ125 engine has a liquid-cooled design and a large-capacity radiator for efficient cooling. 

It can reach speeds of nearly 70 mph and provides sharp acceleration. The 6-speed close-ratio gearbox gives you full access to the wide powerband. 

It is lightweight yet strong and flexible. The Yamaha YZ125’s seat height is 38.6 inches. It also has a flatter seat and a narrower fuel tank that enhances riding ergonomics. 

Yamaha YZ125 Top Speed, Specs, Price, Review, Horsepower, Seat Height, Weight

Yamaha YZ125 Specs, Top Speed, Price, Mileage, Review

2024 Yamaha YZ125 Price

MSRP*: $6,899*

Destination Charge: $430

Freight Surcharge: $250

Specs Summary:

  • Top Speed: Around 70 mph.

  • Horsepower: 33.53 hp

  • Mileage: 26-28 km/l (approx.)

  • Seat Height: 38.6 inches

  • Wet Weight: 207 lb

  • Engine Displacement: 125cc 1-cylinder, 2-stroke

  • Fuel Tank Capacity:1.8 Gallons  


Yamaha YZ125 Specs


Engine Type 125cc liquid-cooled 2-stroke; reed-valve inducted
Bore x Stroke 54.0mm x 54.5mm
Compression Ratio 8.6~10.7:1
Fuel Delivery Mikuni® TMX 38
Ignition CDI
Transmission Constant-mesh 6-speed; multiplate wet clutch
Final Drive Chain


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


Brakes / Front Hydraulic disc, 270mm
Brakes / Rear Hydraulic disc, 245mm


Tires / Front 80/100-21 Dunlop® MX52
Tires / Rear 100/90-19 Dunlop® MX52


L x W x H 84.1 in x 32.6 in x 51.0 in
Seat Height 38.4 in
Wheelbase 56.8 in
Rake (Caster Angle) 26.0°
Trail 4.3 in
Maximum Ground Clearance 14.4 in
Fuel Capacity 2.1 gal
Wet Weight 207 lb


Warranty 30 Day (Limited Factory Warranty)

Yamaha YZ125 Review

The advanced Keihin PWK38S carburetor provides a crisp throttle response and a smooth, quiet operation. Yamaha’s power valve system is responsible for the incredible performance of this Yamaha motocrosser in the mid-range and high-end. 

Yamaha has also improved its air intake design, allowing for straighter air draw. Yamaha keeps using the race-proven aluminum semidouble cradle frame for the YZ125. 

It is lightweight yet strong and flexible. The Yamaha YZ125’s seat height is 38.6 inches. It also has a flatter seat and a narrower fuel tank that enhances riding ergonomics. 

It is equipped with a 48 mm KYB inverted suspension at the front and a fully adjustable KYB shock absorber at the rear. 

The front wheel has a 270mm disc brake, and the rear wheel has a 245mm disc brake. Yamaha YZ125 weighs in at 209 lb. It has a fuel tank capacity of 1.8 gallons. 

Yamaha YZ125 Top Features

  • Aluminum handlebar with adjustable clamp
  • Adjustable clutch lever
  • Front and rear disc brakes with redesigned rotors
  • Race-ready Bridgestone Battlecross X20 tires
  • Reed-valve inducted 2-stroke engine
  • Hitachi Astemo Keihin PWK38S carburetor
  • 3D map-controlled CDI unit
  • Liquid cooling
  • Updated air-intake design
  • Lightweight aluminum semi-double-cradle frame
  • Removable aluminum rear subframe
  • 48 mm Speed sensitive KYB inverted front forks
  • Fully adjustable KYB rear shock absorber
  • Full lock oil rebound system
  • Yamaha power valve system
  • Close-ratio 6-speed transmission


  • Lightweight and nimble, making it easier to maneuver on the track
  • Reliability and durability
  • Powerful two-stroke engine with high horsepower
  • Lower cost compared to four-stroke bikes


  • Requires more maintenance compared to four-stroke engines
  • Tall seat height, which may be challenging for shorter riders
  • The suspension may be harsh and require adjustments for optimal performance
  • No electronic rider aids

Yamaha YZ125 Features

Powerful New YZ125 Engine A completely redesigned liquid-cooled 125cc two-stroke engine boasts increased mid- and top-end power over the 2021 model.
New Brake System The updated lightweight braking system features larger front pistons, a redesigned 270mm front rotor with a 30% increase in the pad contact area, higher friction pad material, and a more rigid caliper combined to match increased engine performance, excellent braking power and feel. The redesigned rear rotor maintains the same braking power while dropping the outer diameter from 245mm to 240mm, further reducing unsprung weight without compromising performance.
Improved Rider Ergonomics A new flatter seat and more narrow fuel tank design, smoothly integrated body panels and slimmer shroud width combine to enable greater freedom of movement forward and back, allowing the rider to shift body weight for increased control and confidence easily.
Revised Suspension Damping The front and rear suspension have been revised to improve bump absorption and cornering performance by taking the Yamaha YZ125’s class-defining suspension and handling characteristics to a new level. KYB® inverted front fork now includes a leaf spring in the mid-speed valve for increased performance and comfort.
Improved Fueling The 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 crisp throttle response, clean, superior rideability and outstanding over-rev character.
New Air Intake Design Updated intake design allows for a straighter, more efficient draw of air into the intake tract.
New, Modern YZ Styling
Slimmer, more bold bodywork, including new front and rear fender design, slimmer body panels and new radiator shrouds, all integrate with a new graphics scheme to highlight the Yamaha YZ’s unmatched racing pedigree. Premium Yamaha Blue and dark blue graphics are embedded to deliver superior durability and scratch resistance.
Lightweight Frame Race-proven, highly developed aluminum semi-double-cradle frame is engineered to provide the right strength and flex for the ideal balance of stability and cornering performance. The removable aluminum rear subframe is constructed of square-section tubing for reduced weight.
Industry-Leading KYB® Fork The Speed-Sensitive System 48mm inverted KYB fork includes a leaf spring in the mid-speed valve for more accurate damping and increased performance and comfort while delivering 11.8 inches of travel.
Advanced KYB® Shock Revised fully flexible 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 improved comfort, and 12.4 inches of travel. It all adds up to great rear-wheel control and class-leading capability.
Race-Ready Tires Premium Bridgestone Battlecross X20 tires offer strong cornering grip and race-developed performance.

Final Words

That’s all about the Yamaha YZ125 Specs, Price, Top Speed, Review, and Images, I hope it will be useful to you, but if you have any questions about this post, then please comment in the below comment box, will try to solve it as soon as possible. Thanks…


What is the ground clearance of the Yamaha YZ125?

Yamaha YZ125 offers a maximum ground clearance of 14.4 inches.

Is a Yamaha YZ125 a 2-stroke?

Yes, it comes with a 125cc single-cylinder, 2-stroke reed-valve inducted engine with liquid cooling.

How much is a Yamaha YZ125?

The Yamaha YZ125 currently has a price tag of $6,899 USD after a recent price hike by the brand.

What is the fuel tank capacity of the Yamaha YZ125?

Yamaha Yz125 has a fuel tank capacity of 1.8 gallons.

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