2025 YZ125 Monster Energy

2025 YZ125 Monster Energy

$12,149.00*
$12,149.00*

*Advertised 'Ride Away Price' including dealer fees, set-up and (if applicable) 12 months registration.

Apply for Finance Enquire Now
CLICK HERE FOR CLEARANCE BIKES ON SALE!
SHARE:
View full details
The YZ125 represents an important evolution in Yamaha’s two-stroke lineage. Yamaha engineers put considerable thought into developing a motorcycle that would be both dominant on the racetrack and user-friendly for developing riders looking to bridge the gap between recreation riding and competitive motocross.

The advanced liquid-cooled 125cc two-stroke engine provides impressive acceleration, thrilling mid- to high-rpm power, along with supreme usability. While the lightweight finely tuned chassis means nimble handling, more control and less rider fatigue - the ideal platform for advancing skills and gaining confidence.
 

This special edition is fitted with Monster Energy Yamaha Racing graphics for a factory look.

*The product images shown are for illustration purposes only and may not be an exact representations of the product. Cullys Yamaha reserve the right to change product images and specifications at anytime without notice. Additional products may be displayed within image to illustrate the product offered for sale

MODEL
YEAR

FEATURES

Powerful Two-Stroke YZ125 Engine

Powerful Two-Stroke YZ125 Engine

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

Close-ratio transmission

Close-ratio transmission

Close-ratio six-speed transmission has wider transmission gear tooth width and optimised gear ratios for maximum performance.

Keihin Powerjet carburettor

Keihin Powerjet carburettor

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.

Lightweight frame

Lightweight frame

Race-proven, highly developed aluminium semi-double cradle frame is engineered to provide just the right amount of strength and flex for the perfect balance of stability and cornering performance. Removable aluminium rear subframe is constructed of square-section tubing for reduced weight.

Powerful braking system

Powerful braking system

The high performance braking system features a 270mm front rotor, 240mm rear rotor, large front pistons and rigid calipers, all combining to provide exceptional braking power and feel.

Best-in-class KYB suspension

Best-in-class KYB suspension

Yamaha’s SSS (Speed Sensitive System) KYB front forks are widely regarded as being amongst the best designs available on a production motocross bike, and the YZ125 features low speed damping settings on both the front and rear suspension systems for better handling characteristics. Tool-free compression adjustment now features on top of each fork leg.

Race-developed ergonomics

Race-developed ergonomics

Complete with an aluminium handlebar, two-position adjustable handlebar clamp, lightweight bar pad, wide footpegs, gripper seat, adjustable clutch lever with works-style cable adjuster and lightweight rear sprocket design, the YZ125 is competition-ready straight out of the crate.

TECHNICAL SPECIFICATION

Monster Energy Yamaha Racing Edition
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 Capacity (L)7
Final TransmissionChain
TransmissionConstant mesh 6-speed
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 Bridgestone Battlecross X20F
Tyres Rear100/90-19 Bridgestone® Battlecross X20
Length (mm)2135
Width (mm)825 Height (mm)1295
Seat Height (mm)975
Wheelbase (mm)1440
Ground Clearance (mm)365
Wet Weight (kg)95