2021 Yamaha YZ125X Specs

motorcycle specs

These are the known mechanical and performance specifications for your 2021 Yamaha YZ125X.

Basic Specs

Yamaha YZ125X
Year2021
MakeYamaha
ModelYamaha YZ125X
CostUS$ 6699. MSRP depends on country, taxes, accessories, etc.

Engine

Displacement125.0 ccm (7.63 cubic inches)
TypeReed-valve-inducted
DetailsSingle cylinder, two-stroke
Max RPM
Compression8.8:1
Bore/Stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Valves/Cylinder
FuelingCarburettor. Mikuni TMX 38
IgnitionCDI
Exhaust
LubricationPremix
CoolingLiquid

Drivetrain

Gearbox6-speed
Final Drive
ClutchO-ring chain
Driveline

Performance

Horespower
Torque
Top Speed

Fuel Economy & Polution

Fuel Consumption
Fuel Capacity8.00 litres (2.11 US gallons)
Emissions

Chassis

Frame TypeSemi-double cradle aluminium frame
Rake26.8 deg
Trail117 mm (4.6 inches)
Front SuspensionKYB® Speed-Sensitive System inverted fork; fully adjustable
Front Travel300 mm (11.8 inches)
Rear SuspensionKYB® single shock; fully adjustable
Rear Travel315 mm (12.4 inches)
Seat
Seat Height975 mm (38.4 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1285 mm (50.6 inches)
Total Length2141 mm (84.3 inches)
Total Width825 mm (32.5 inches)
Ground Clearance351 mm (13.8 inches)
Wheelbase1455 mm (57.3 inches)
Dry Weight
Wet Weight94.8 kg (209.0 pounds)

Wheels & Brakes

Front Tire/Tyre90/90-21
Rear Tire/Tyre110/90-18
Front BrakesSingle disc. Hydraulic.
Front Brake Diameter270 mm (10.6 inches)
Rear BrakesSingle disc. Hydraulic.
Rear Brake Diameter245 mm (9.6 inches)
WheelsDunlop® AT81 tires

Comments

It appears you're interested in specifications for the Yamaha YZ125X. This Enduro / offroad model is powered by a Reed-valve-inducted Single cylinder, two-stroke engine with 125.0 ccm (7.63 cubic inches) of actual displacement before 8.8:1 compression. Fueling is metered via Carburettor. Mikuni TMX 38 allowing this machine to produce its horsepower and torque. According to our records engine heat of the Yamaha YZ125X is moderated by Liquid. You'll need to get familiar with the 6-speed transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 90/90-21 and the rear is 110/90-18 . The entire package is supported by the frame, Semi-double cradle aluminium frame. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Single disc. Hydraulic. front brakes and Single disc. Hydraulic. rear brakes. The Yamaha YZ125X was launched in 2021, and we're happy to know (or assume) you've got one in your garage. To help you keep your ride in tip-top shape, consider purchasing an owner or service manual.