Hercules K 125 T vs Yamaha YZ 125X (2026)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Hercules K 125 Tstacks up against the Yamaha YZ 125X. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecHercules K 125 TYamaha YZ 125X
Model year19732026
Price$7,299
Engine124 cc125 cc
Horsepower17 hp
Weight96 kg
Seat height970 mm
Fuel capacity2.8 L6.0 L
Fuel typepetrolpetrol
Transmission6-speedManual, 6 speed, Chain
Front brakesExpanding brakeHydraulic Disc
Rear brakesExpanding brakeHydraulic Disc
Tires2.75-17 / 3.00-17 Dunlop® Geomax MX33F 80/100 - 21 / Dunlop® Geomax MX33 110/100 - 18

Hercules K 125 T vs Yamaha YZ 125X — which should you buy?

Picking between the Hercules K 125 T and the Yamaha YZ 125X usually comes down to the numbers you care about most. On paper, the Hercules K 125 T brings 17 hp, while the Yamaha YZ 125X counters with its own power figure at 96 kg.

Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: