Yamaha YZ125 Monster Energy - 2022 Specifications and Reviews

The 2022 Yamaha YZ125 Monster Energy is a lightweight 125cc two-stroke motocross bike designed for entry-level and amateur riders seeking competitive performance. Known for its responsive single-cylinder engine and nimble handling, it excels in youth and amateur racing while offering excellent acceleration and maneuverability on varied terrain.

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General information

CategoryCross / motocross
Year2022
ModelYamaha YZ125 Monster Energy
 
 

Engine and Transmission Specifications

DrivelineConstant-mesh
ClutchMultiplate wet clutch
Transmission typeChain   (final drive)
Gearbox6-speed
Cooling systemLiquid
Lubrication systemPremix
IgnitionDigital CDI
Fuel systemCarburettor. Keihin PWK38S
Bore x Stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Compression10.7:1
Engine detailsReed-valve-inducted
Engine typeSingle cylinder, two-stroke
Capacity:125.0 ccm (7.63 cubic inches)
 
 

Brakes, suspension, Frame and wheels

WheelsBridgestone® Battlecross tires
Rear brakesSingle disc. Hydraulic.
Diameter270 mm (10.6 inches)
Front brakesSingle disc. Hydraulic.
Rear tire100/90-19
Front tire80/100-21
Rear wheel travel315 mm (12.4 inches)
Rear SuspensionKYB® single shock; fully adjustable
Front wheel travel300 mm (11.8 inches)
Front SuspensionKYB® Speed-Sensitive System inverted fork; fully adjustable
Trail109 mm (4.3 inches)
Rake (fork angle)26.0°
Frame typeAluminum semi-double cradle

Physical measures and capacities

Oil capacity0.70 litres (0.74 US quarts)
Fuel capacity6.81 litres (1.80 US gallons)
Wheelbase1445 mm (56.9 inches)
Ground clearance366 mm (14.4 inches)
Overall width826 mm (32.5 inches)
Overall length2136 mm (84.1 inches)
Overall height1295 mm (51.0 inches)
Seat height980 mm (38.6 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc94.8 kg (209.0 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Modifications compared to previous modelRedesigned engine.
Factory warranty30 Day Limited Factory Warranty
StarterKick
Color optionsTeam Yamaha Blue/green

Maintenance and service data

Fork tube size48 mm (1.9 inches)
Tire pressure rear15 PSI (1 Bar or 100 kPa)
Tire pressure front15 PSI (1 Bar or 100 kPa)
Spark plugsNGK BR9EVX, NGK BR9EIX

Performance Profile & Rider Fit

Best For

Track90%
City5%
Cornering88%
Daily Riding5%
Touring5%
Passenger0%

Rider Profile

Best ForBest suited to intermediate through expert off-road riders who understand two-stroke power delivery and clutch management.
PurposeBuilt purely for motocross track riding and competitive off-road racing, not general transportation.
Rider FitVery light and tall with a high seat height, favoring taller, fitter riders comfortable standing and shifting body weight aggressively.
CharacterA raw, high-revving two-stroke that rewards aggressive riding, precise clutch control, and active rider input over smooth cruising.
Not Ideal ForNot suitable for street use, commuting, passengers, or riders seeking comfort and low-maintenance touring capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2022 Yamaha YZ125 Monster Energy Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 980mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2022 Yamaha YZ125 Monster Energy, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2022 Yamaha YZ125 Monster Energy is a sleek and powerful motocross bike that's sure to turn heads on the track. With its eye-catching Monster Energy livery and top-notch performance, this bike is a must-have for any serious motocross enthusiast. The 125cc engine delivers plenty of power for tackling jumps and tight corners, while the lightweight chassis and agile handling make it a joy to ride. Whether you're a seasoned racer or just getting started in the sport, the YZ125 Monster Energy is a fantastic choice for anyone looking for a high-performance motocross bike. In conclusion, the 2022 Yamaha YZ125 Monster Energy is a top-of-the-line motocross bike that's sure to impress riders of all skill levels. From its striking appearance to its impressive performance on the track, this bike has everything you need to take your motocross game to the next level. If you're in the market for a new motocross bike, the YZ125 Monster Energy should be at the top of your list.
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