2023 Yamaha YZ125 Review – Specs

Yamaha YZ125 comes equipped with race-ready features such as an aluminum handlebar, adjustable handlebar clamp, wide footpegs, gripper seat, adjustable clutch lever, and lightweight rear sprocket design. It is ready to compete straight out of the box.

Yamaha Yz125 2023 Specs
Yamaha Yz125 2023 Specs

Yamaha YZ125 2023 Features

POWERFUL TWO-STROKE ENGINE: Yamaha’s advanced 125cc two-stroke engine is liquid-cooled and delivers impressive acceleration and thrilling power in the mid- to high-rpm range. It is designed for maximum usability.

KYB® SUSPENSION: The YZ125 is known for its exceptional suspension performance, offering unmatched control, capability, and comfort. The fully adjustable 48mm inverted KYB® front fork includes a leaf spring for precise damping, while the KYB® rear shock features reduced-friction Kashima Coat™ internals. Together, they create class-leading suspension and handling.

Rider-friendly Frame: The lightweight and finely tuned frame ensures agile handling, providing better control and reducing rider fatigue. It is the perfect foundation for improving skills and building confidence.

High Performance Brakes: The front and rear brakes deliver exceptional braking power and responsiveness, enhancing the overall performance of the bike.

Comfortable and Inspiring Design: The ergonomics of the bike have been carefully designed to inspire confidence in the rider. A flatter seat, narrow fuel tank, and seamlessly integrated body panels allow for greater freedom of movement, enabling the rider to easily shift their body weight for better control and confidence.

Bold and Aggressive Styling: The YZ stands out with its aggressive bodywork, featuring slim panels and sleek radiator shrouds. These, combined with a striking graphics scheme in Premium Yamaha Blue and dark blue, highlight the bike’s impressive racing pedigree. The graphics are highly durable and scratch-resistant.

Perfect for Motocross Enthusiasts: Designed specifically for motocross, this bike is light, nimble, and built for competition. It is an ideal choice for aspiring motocross riders.

Yamaha YZ125 2023 Specs

General information

Model Yamaha YZ125
Year 2023
Category Cross / motocross
Price as new US$ 6999. MSRP depends on country, taxes, accessories, etc.

Engine and transmission

Displacement 125.0 ccm (7.63 cubic inches)
Engine type Single cylinder, two-stroke
Engine details Reed-valve-inducted
Compression 10.1:1
Bore x stroke 54.0 x 54.5 mm (2.1 x 2.1 inches)
Fuel system Carburettor. Hitachi Astemo® Keihin PWK38S carburetor
Ignition Digital CDI
Lubrication system Premix
Cooling system Liquid
Gearbox 6-speed
Transmission type Chain   (final drive)
Clutch Multiplate wet clutch
Driveline Constant-mesh

Chassis, suspension, brakes and wheels

Frame type Aluminum semi-double cradle
Rake (fork angle) 26.0°
Trail 109 mm (4.3 inches)
Front suspension KYB® Speed-Sensitive System inverted fork; fully adjustable
Front wheel travel 300 mm (11.8 inches)
Rear suspension KYB® single shock; fully adjustable
Rear wheel travel 315 mm (12.4 inches)
Front tire 80/100-21
Rear tire 100/90-19
Front brakes Single disc. Hydraulic.
Diameter 270 mm (10.6 inches)
Rear brakes Single disc. Hydraulic.
Diameter 240 mm (9.4 inches)
Wheels Bridgestone® Battlecross X20 tires.

Physical measures and capacities

Weight incl. oil, gas, etc 94.8 kg (209.0 pounds)
Seat height 980 mm (38.6 inches) If adjustable, lowest setting.
Overall height 1295 mm (51.0 inches)
Overall length 2136 mm (84.1 inches)
Overall width 826 mm (32.5 inches)
Ground clearance 366 mm (14.4 inches)
Wheelbase 1445 mm (56.9 inches)
Fuel capacity 6.81 litres (1.80 US gallons)
Oil capacity 0.70 litres (0.74 US quarts)

Other specifications

Color options Team Yamaha Blue
Starter Kick
Factory warranty 30 Day Limited Factory Warranty
Update specs

Maintenance and service specs *

Brake fluid DOT 4
Spark plugs NGK BR9EVX, NGK BR9EIX
Tire pressure front 15 PSI (1 Bar or 100 kPa)
Tire pressure rear 15 PSI (1 Bar or 100 kPa)
Fork tube size 48 mm (1.9 inches)
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