Call For Price
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 mated to a six-speed transmission for the ultimate cross country powerplant.
Lightweight Aluminum Frame
Ultra-lightweight YZ125-spec frame features a carefully engineered combination of aluminum castings, forgings and extrusions for the perfect balance of rigidity and flex for competition-ready handling character and composure.
Yamaha’s renowned KYB® speed sensitive spring-type front fork is matched with a high performance KYB® long-travel rear shock, both fully adjustable and tuned for the demands of cross country racing.
Cross country focused suspension setup and Dunlop® Geomax AT81 tires, 18-inch rear wheel, sealed O-ring chain, a standard side stand and fuel tank petcock with reserve position are perfect for GNCC® 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® Geomax AT81 tires, the YZ125X is competition-ready straight out of the crate.
GNCC®-Tuned YZ125 Power
Based on the legendary 125cc liquid-cooled, reed-valve-inducted YZ two-stroke engine, the YZ125X utilizes a revised compression ratio, Yamaha Power Valve System (YPVS™) timing and a model-specific CDI unit—all focused on creating broad power delivery that suits off-road terrain and a wide range of rider skill levels.
Revised Power Valve
The YZ125X features the patented Yamaha Power Valve System—with broader opening timing compared to the motocross version for smoother power—to create a smooth balance of power across the rev range.
Narrow Exhaust Pipe
The compact exhaust expansion chamber provides both horizontal and vertical clearance on tight, technical trails while still providing excellent exhaust efficiency.
Racing Intake System
Specially designed carbon fiber reed-valve petals improve throttle response and engine performance across the entire rpm range.
Smooth-shifting six-speed transmission ensures proper gearing, from tight woods to wide-open fire roads, optimizing power delivery from the two-stroke powerplant.
YZ125 Cooling System
Large-capacity radiator features a large cooling core with protective louvers for maximum cooling efficiency and durability in racing conditions.
Specifically tuned for the needs of the YZ125X, the digital CDI ignition system delivers precise spark for faster, stronger response anywhere in the powerband.
Industry-Leading KYB® Fork
The industry-leading, fully adjustable KYB® spring-type fork with speed-sensitive damping uses piston speed to control the damping force for super-precise handling and a smooth ride. With minimal wasted stroke or abrupt shocks for the rider, this bike is tuned for the demands of cross country racing.
Smooth KYB® Shock
Fully adjustable KYB® rear shock features 12.4 inches of travel, separate adjusters for high- and low-speed compression damping and a full lock oil rebound system for increased comfort, control and fantastic rear wheel traction in challenging conditions.
A carefully engineered aluminum frame and swingarm give the YZ125X the famous handling proven by the championship-winning YZ motocross riders on tracks around the world.
Removable aluminum rear subframe is constructed of square-section tubing for reduced weight.
270mm Front Brake
Large 270mm front rotor coupled with high performance pad material offer excellent machine control and performance with exceptional stopping power and controllability.
Enduro-Specific Wheels and Tires
Cross country-spec Dunlop® Geomax AT81 tires are competition-ready, while the 18-inch rear tire has a taller sidewall to improve comfort and reduce pinch flats.
Cross Country Ergonomics
A racy "gripper"-type seat and narrow fuel tank combined with a tapered aluminum handlebar and adjustable mounts create greater freedom of movement and more comfortable ergonomics for riders.
Cross Country Features
The YZ125X is focused on cross country competition with an 18-inch rear wheel, larger rear sprocket, a side stand, sealed O-ring chain and a reserve fuel petcock.
|Price - MSRP||6799|
|Price - Currency||US Dollars|
|Price - Warranty (Months)||1|
|Price - Destination Charge||430|
|Price - MSRP + Destination||7229|
|Price - Warranty (Condition)||Limited|
|Engine - Engine Type||Single-Cylinder|
|Engine - Cylinders||1|
|Engine - Engine Stroke||2-Stroke|
|Engine - Cooling||Liquid|
|Engine - Valves||0|
|Engine - Valves Per Cylinder||0|
|Engine - Valve Configuration||Reed Valve|
|Engine - Bore (mm)||54|
|Engine - Bore (in)||2.13|
|Engine - Stroke (mm)||54.5|
|Engine - Stroke (in)||2.15|
|Engine - Displacement (cc)||125|
|Engine - Displacement (ci)||7.6|
|Engine - Compression Ratio||7.4:1|
|Engine - Starter||Kick|
|Engine - Fuel Requirements||Regular|
|Engine - Compression Ratio (Secondary)||8.8:1|
|Engine - Fuel Type||Gas / Oil Premix|
|Engine - Turbocharged||No|
|Engine - Supercharged||No|
|Carburetion - Carburetion Brand||Mikuni|
|Carburetion - Fuel Injector||No|
|Carburetion - Carburetor||Yes|
|Carburetion - Number Of Carburetors||1|
|Carburetion - Carburetor Size (mm)||38|
|Carburetion - Carburetion Type||Carburetor|
|Transmission - Transmission Type||Manual|
|Transmission - Number Of Speeds||6|
|Transmission - Overdrive||No|
|Transmission - Primary Drive (Rear Wheel)||Chain|
|Transmission - Gear Ratio (1)||2.39|
|Transmission - Gear Ratio (2)||1.93|
|Transmission - Gear Ratio (3)||1.59|
|Transmission - Gear Ratio (4)||1.35|
|Transmission - Gear Ratio (5)||1.2|
|Transmission - Gear Ratio (6)||1.1|
|Transmission - Reverse||No|
|Dimensions - Length (in)||84.3|
|Dimensions - Length (mm)||2141.2|
|Dimensions - Width (in)||32.5|
|Dimensions - Width (mm)||825.5|
|Dimensions - Height (in)||50.6|
|Dimensions - Height (mm)||1285.2|
|Dimensions - Wheelbase (in)||57.3|
|Dimensions - Wheelbase (mm)||1455.4|
|Dimensions - Ground Clearance (in)||13.8|
|Dimensions - Ground Clearance (mm)||350.5|
|Dimensions - Length (ft)||7.02|
|Dimensions - Length (ft/ft)||7|
|Dimensions - Length (ft/in)||0.3|
|Weight - Wet Weight (lbs)||209|
|Weight - Wet Weight (kg)||94.8|
|Capacities - Fuel Capacity (gal)||2.1|
|Capacities - Fuel Capacity (l)||8|
|Performance - Engine Displacement to Weight (cc)||0.6|
|Construction - Frame||Aluminum|
|Construction - Body Material||Plastic|
|Foot Pegs - Foot Peg Location||Driver|
|Foot Pegs - Adjustable||No|
|Exterior Guards - Chain Guard||Yes|
|Exterior Guards - Chassis Protectors||Yes|
|Exterior Guards - Drive Shaft Guard||No|
|Exterior Guards - Engine Case Guard||No|
|Exterior Guards - Fork Guards||Yes|
|Exterior Guards - Saddle Bag Guard||No|
|Exterior Guards - Tank Guard||No|
|Exterior Guards - Belt Guard||No|
|Exterior Guards - Hand Guards||No|
|Exterior Guards - Brush Guard||No|
|Exterior Guards - Exhaust Guard||No|
|Exterior Guards - Light Guard||No|
|Exterior Covers - Fuel Tank Cover||No|
|Stand - Stand Type||Kick|
|Front Suspension - Front Suspension Type||Inverted Fork|
|Front Suspension - Front Suspension Size (in)||1.9|
|Front Suspension - Front Suspension Size (mm)||48|
|Front Suspension - Front Travel (in)||11.8|
|Front Suspension - Front Travel (mm)||299.7|
|Front Suspension - Front Adjustable Fork Pre-Load||Yes|
|Front Suspension - Front Adjustable Rebound Damping||Yes|
|Front Suspension - Front Central Suspension Strut||No|
|Front Suspension - Front Suspension Brand Name||KYB|
|Front Suspension - Steering Damper||No|
|Rear Suspension - Rear Suspension Type||Twin Sided Swing Arm|
|Rear Suspension - Rear Travel (in)||12.4|
|Rear Suspension - Rear Travel (mm)||315|
|Rear Suspension - Rear Adjustable Shock / Spring Pre-Load||Yes|
|Rear Suspension - Rear Adjustable Rebound Damping||Yes|
|Rear Suspension - Number Rear Shock Absorbers||1|
|Rear Suspension - Rear Suspension Brand Name||KYB|
|Rear Suspension - Rear Suspension Material||Aluminum|
|Rear Suspension - Air Adjustable||No|
WHEELS & TIRES
|Wheels - Wheels Composition||Aluminum|
|Wheels - Tube / Tubeless||Tubed|
|Wheels - Chromed||Yes|
|Tires - Tire Brand||Dunlop®|
|Tires - Front Tire Width||90|
|Tires - Front Tire Aspect Ratio||90|
|Tires - Front Tire Speed Rating||81F|
|Tires - Front Wheel Diameter||21|
|Tires - Rear Tire Width||110|
|Tires - Rear Tire Aspect Ratio||90|
|Tires - Rear Tire Speed Rating||81|
|Tires - Rear Wheel Diameter||18|
|Tires - Front Tire (Full Spec)||Dunlop® AT81F 90/90 R21|
|Tires - Rear Tire (Full Spec)||Dunlop® AT81 110/90 R18|
|Brakes - Front Brake Type||Hydraulic Disc|
|Brakes - Front Brake Diameter (in)||10.6|
|Brakes - Front Brake Diameter (mm)||270|
|Brakes - Rear Brake Type||Hydraulic Disc|
|Brakes - Rear Brake Diameter (in)||9.7|
|Brakes - Rear Brake Diameter (mm)||245|
|Seat - Seat Type||One-Piece|
|Seat - Adjustable||No|
|Seat - Seat Material||Vinyl|
|Seat - Seat Location||Driver|
|Seat - Folding||No|
|Seat Specifications - Seat Height (in)||37.6|
|Seat Specifications - Seat Height (mm)||955|
|Seat Specifications - Number Of Seats||1|
PAINT & FINISH
|Paint - Metallic||No|
|Steering - Steering Control||Handlebar|
Certain features may require an additional add-on package that may not be included in the retail or sale price. Please contact the dealership for full details.