2021 Yamaha YZ125X

New MotorcyclesCross Country


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The perfect step up to a full-size Cross Country machine, this lightweight 2-stroke is the pinnacle of performance on the race course.

Engine Type

125cc liquid-cooled 2-stroke; reed-valve inducted

Bore x Stroke

54.0 mm x 54.5 mm

Compression Ratio


Fuel Delivery



6-speed; multiplate wet clutch

Final Drive


Suspension / Front

KYB® spring-type fork with speed sensitive damping; fully adjustable, 11.8-in travel

Suspension / Rear

KYB® single shock; fully adjustable, 12.4-in travel

Brakes / Front

Hydraulic disc, 270mm

Brakes / Rear

Hydraulic disc, 245mm

Tires / Front

90/90-21 Dunlop® AT81F

Tires / Rear

110/90-18 Dunlop® AT81

L x W x H

84.3 in x 32.5 in x 50.6 in

Seat Height

37.6 in


57.3 in

Rake (Caster Angle)



4.6 in

Maximum Ground Clearance

13.8 in

Fuel Capacity

2.1 gal

Wet Weight

209 lb

Two-Stroke Agility: Tuned for Cross Country and Hare Scrambles Racing
The YZ125X™ is optimized for the unique demands of Hare Scrambles and GNCC® racing. The YPVS™-equipped 125cc two-stroke engine is combined with a six-speed transmission for the ultimate cross country power plant.

Lightweight Aluminum Frame
Ultra-lightweight YZ125™-spec frame features carefully engineered combination of aluminum castings, forgings and extrusions for the perfect balance of rigidity and flex. The industry-leading fully adjustable, the KYB® speed sensitive spring-type suspension is tested and tuned specifically for the needs of cross country racers.

GNCC®-Specific Features
18-inch rear wheel, sealed O-ring chain, off-road focused tires and suspension settings, a standard side stand and fuel tank petcock with reserve position are perfect for GNCC racing.

Industry-Leading Suspension
Yamaha’s renowned spring-type KYB® fork is matched with a long-travel shock, both fully adjustable and tuned for the demands of cross country racing.

Racing Style and Ergonomics
The YZ125X carries the racing heritage of the YZ motocrosser with its aggressive styling from the front fender to the rear brake protector. Complete with an aluminum tapered handlebar, YZ-F-style foot pegs, gripper seat, and Dunlop® tires, the YZ125X is ready to race out of the crate.

We offer lifetime Engine Warranty.
No-Risk Extended Warranties.
50% Off Service Plans.
Employee pricing on all gear and accessories on the day of sale.
Financing for everyone.
Trade-ins accepted

Call Cycle Springs Powersports for all your Dirt Bike, Motocross, Enduro & MX Motorcycle questions! 727-771-1211

 Professional rider(s) on closed area.  Dress properly for your ride with a helmet, eye protection, and protective riding gear.  Do not drink and ride.  It is illegal and dangerous.  Specifications are subject to change.