Yamaha YZ125

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Yamaha YZ125 (2017 ~) (+ front brake disc 250 → 270 mm)

The Yamaha YZ125 begins its history in 1974 - then it was an archaic (by modern standards) motorcycle with an air-cooled engine and double shock absorbers at the rear, which did not resemble a cross model in the modern sense. Only by the end of the 80s of the last century, the Yamaha YZ 125 acquires modern features, and by 1989 - an inverted fork. In our review, we will be looking at models starting in 2005, when the motorcycle received a modern aluminum frame.

Since 2006 the motorcycle has been equipped with the new KYB SSS (Speed-Sensitive System) front fork.

In 2007, the Yamaha YZ125 undergoes minor changes, the main of which are new petal brake discs, and in 2017 - an increased diameter of the front disc (from 250 to 270 mm).

The Yamaha YZ125 features a 2-stroke liquid-cooled engine with a power valve system (YPVS), an aluminum frame (since 2005), sports adjustable suspensions, an 8-liter fuel tank, a carburetor power system and 94 kg of curb weight.

In 2001, Yamaha introduced a 4-stroke version Yamaha YZ250F, which was intended to replace similar 2-stroke models, but the YZ125 is still sold in parallel and may be in the same racing class.

The main competitors of the Yamaha YZ 125 in the class:



Specifications Yamaha YZ125 (2005+):

ModelYamaha YZ125
Motorcycle typecross
Release year1974+
FrameAluminum half duplex
Engine type1-cylinder, 2-stroke
Working volume124 cm³
Bore / stroke54.0 x 54.5 mm
Compression ratio8.6 ~ 10.7: 1
Number of valves per cylinderpetal valve
Fuel supply systemCarburetor, 1x Mikuni TMX38
Ignition typeCDI
Maximum power39.0 h.p. (28.7 kW) at 11,500 rpm
Maximum torque25.5 Nm (2.6 kg-m) at 10,000 rpm
Drive typechain
Front tire size80 / 100-21 51M
Rear tire size100 / 90-19 57M
Front brakes1 disc, 250mm, 2-piston caliper - YZ125 (up to 2017)

Single disc, 270 mm, 2-piston caliper - YZ125 (2017+)

Rear brakes1 disc, 245 mm, 1-piston caliper
Front suspension48mm inverted fork (fully adjustable), 300mm travel
Rear suspensionPendulum with monoshock (fully adjustable), stroke - 315 mm
Motorcycle length2135 mm
Motorcycle width827 mm
Motorcycle height1315 mm
Wheelbase1443 mm
Saddle height997 mm

975 mm - YZ125 (2015+)

Minimum ground clearance386 mm

365 mm - YZ125 (2015+)

Acceleration to 100 km / h
Maximum speed
Fuel tank capacity8.0 l
Motorcycle weight (curb)94 kg

Yamaha Off-Road Motorcycle Lineup

85-150 см³YZ85 · WR125 · YZ125
200-250 см³TW200 · TW225 · Serow 225 · Serow 250 · TT-R250 · WR250F · XG250 · YZ250 · YZ250F
400-500 см³WR450F · YZ450F
600-750 см³XT660R