Yamaha YZ125X

Description

The all-new 2024 YZ125X is ready to rip with a powerful, completely redesigned 125cc two-stroke engine, revised suspension damping, new lightweight braking system, improved ergos and a sharp new look. The ultimate step-up to full-size off-road performance.

Optimised for the unique demands of racing in the bush, the Aussie version will be fitted with off-road kit as standard.

* Images show US model

Nearly every functional part of the engine is new from the cylinder body, cylinder head, piston, piston pin, connecting rod, crankcase and expansion chamber, to a revised cylinder port shape and updated cylinder port timing. It’s a change thatis immediately apparent at the first crack of thethrottle and throughout the entire rpm range.

The all-new YZ125X also features advanced KYB suspension, gripper seat and narrow fuel tank combined with a tapered aluminium handlebar and adjustable mounts, slick blue Excel rims and newly sized high performance Dunlop Geomax MX33 tyres for improved cornering traction, stability and feel.

Other features include an 18-inch rear wheel, larger rear sprocket, side stand, sealed O-ring chain, new headlight, reserve fuel petcock, and newly adopted scraper between the fork’s dust and oil seal, all adding up to exceptional off-road performance.

Download Print Friendly PDF YZ125X

Engine Type: Liquid-cooled, 2-stroke, reed-valve
Displacement (cc): 125.0
Bore x Stroke (mm): 54.0 x 54.5
Compression Ratio: 7.8 – 10.2 : 1
Lubrication System: Premix
Fuel Management: PWK38S
Ignition: CDI
Starter System: Kick
Fuel Tank Capacity (L): 8.0
Final Transmission: Chain
Transmission: Constant mesh 6-speed

Frame Type: Aluminium controlled filled semi double cradle
Suspension Front: Telescopic forks, 300mm travel
Suspension Rear: Swingarm (link suspension), 315mm travel
Brakes Front: Hydraulic single disc, 270mm
Brakes Rear: Hydraulic single disc, 240mm
Tyres Front: 80/100-21 Dunlop Geomax MX33F
Tyres Rear: 110/100-18 Dunlop Geomax MX33