2026 Yamaha YZ125 Motocross Bike

The 2026 Yamaha YZ125 continues the legacy of one of the world’s most successful 125cc two-stroke motocross bikes. Built on more than 50 years of Yamaha racing innovation, the YZ125 delivers race-winning performance, lightweight handling and the reliability that has made it a favourite among motocross riders.

Powered by a high-performance 125cc liquid-cooled two-stroke engine, the YZ125 features Yamaha’s renowned Yamaha Power Valve System (YPVS), delivering strong low-end torque, instant throttle response and impressive top-end power to help riders launch out of corners and stay competitive throughout the race.

The lightweight aluminium frame provides exceptional agility and precise handling, while the industry-leading KYB® suspension absorbs rough terrain and big landings with confidence. Combined with ultra-slim bodywork and race-focused ergonomics, the YZ125 allows riders to move freely and maintain maximum control on every lap.

Designed for serious motocross competition, the 2026 Yamaha YZ125 is ready to perform straight from the showroom.

Key Features

High-performance 125cc liquid-cooled two-stroke engine
Yamaha Power Valve System (YPVS)
Lightweight race-developed engine components
Lightweight aluminium frame
Class-leading KYB® suspension
Slim, race-inspired bodywork
Outstanding cornering and jumping performance
Built for motocross competition
Legendary Yamaha race-winning reliability

Whether you’re stepping into competitive motocross or looking to sharpen your racing skills, the 2026 Yamaha YZ125 delivers the performance, handling and reliability needed to compete at the highest level.

Yamaha YZ125 2026

$13,049.00

$12,499.00

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 Tank Capacity (L)7.0
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 51M Tube type
Tyres Rear100/90-19 57M Tube type
Length (mm)2135
Width (mm)825
Height (mm)1295
Seat Height (mm)980
Wheelbase (mm)1445
Ground Clearance (mm)365
Wet Weight (kg)96

Prices include GST. Ordering, freight & collection

For bikes, ask us about viewing, accessories and trade-ins. For parts and gear, include the size, colour and your bike’s make, model and year so we can check fitment.

Contact us to confirm availability. Some items need to be ordered from suppliers. We’ll send an invoice; once payment is received, your order can be shipped or collected.

Contact us for a freight quote before ordering. Pick up in store, or ask us about collection at selected local motocross events by prior arrangement.

Returns

For change-of-mind returns, contact us to check the relevant supplier’s return conditions. If your item is faulty or there’s a problem with your order, contact CSM so we can help. This does not limit your rights under the Consumer Guarantees Act.

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Finance is subject to approval, lending criteria, fees and conditions. Insurance is subject to policy conditions, exclusions and limits. Contact Yamaha Motor Insurance for cover enquiries.

Yamaha YZ125 2026

Engine

Chassis

Dimensions

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