Complete technical review of the 2026 Yamaha YZ 125 (YZ125 Monster Energy Edition). Features a 125cc liquid-cooled 2-stroke engine with Yamaha Power Valve System (YPVS), 35.0 HP power, 22.5 Nm torque, 110 km/h top speed, Keihin PWK38S carb, KYB SSS front forks, aluminum frame, 95 kg weight, and $7,099 USD (Rs. 6.80 Lakh) price.
125cc 2-Stroke YPVS Powertrain Architecture & 35 HP Output
The 2026 Yamaha YZ 125 is powered by a high-output 125cc 2-stroke liquid-cooled reed-valve engine featuring the Yamaha Power Valve System (YPVS). Producing 35.0 HP at 11,500 rpm and 22.5 Nm of torque at 10,000 rpm, the YPVS mechanism broadens 2-stroke torque delivery, propelling the ultra-light 95 kg motocross racer through a 6-speed close-ratio transmission up to 110 km/h.
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Aluminum Cradle Chassis, KYB SSS Forks & Dunlop MX33 Tires
Constructed around a lightweight aluminum semi-double cradle frame, the YZ 125 features 48mm KYB SSS (Speed Sensitive System) inverted front forks with 300mm travel and a fully adjustable KYB rear shock with 315mm travel. Dunlop Geomax MX33 spoked wheels deliver track berm grip.
Keihin PWK38S Carburetor & Nissin Wave Disc Brakes
A Keihin PWK38S carburetor with powerjet sensor ensures crisp throttle response. 270mm front wave disc brakes clamped by Nissin 2-piston calipers provide single-finger stopping control.
18 km/l Fuel Economics & Motocross Race Range
Delivering a track fuel economy of 18.0 km/l alongside a 7.0-liter fuel tank, the YZ 125 is engineered for high-intensity closed-course moto heats. Calculate loan financing and monthly operating expenses using our bike finance and fuel calculator.
Frequently Asked Questions (FAQs)
What is the price of the Yamaha YZ 125 in 2026? +
The 2026 Yamaha YZ 125 is priced at $7,099 USD MSRP globally / approx. Rs. 6.80 Lakh.
What is the horsepower and top speed of Yamaha YZ 125? +
The YZ 125 produces approximately 35.0 HP @ 11,500 rpm and reaches a motocross track top speed of 110 km/h with close-ratio 6-speed gearing.
How does the Yamaha Power Valve System (YPVS) work? +
YPVS alters exhaust port height mechanically based on engine RPM, expanding the 2-stroke powerband to provide strong low-end torque without sacrificing top-end horsepower.
Is the Yamaha YZ 125 street legal? +
No, the YZ 125 is a pure competition closed-course motocross race bike lacking headlights, turn signals, mirrors, horn, and kickstand.
What suspension setup is equipped? +
It features KYB 48mm SSS (Speed Sensitive System) inverted front forks with 300mm travel and a fully adjustable KYB rear shock absorber with 315mm travel.
What is the weight and seat height of the YZ 125? +
The YZ 125 weighs a featherlight 95 kg wet and features a tall 975mm motocross seat height.