Yamaha - Motorcycles - YZF-R125


2018 Motorcycles

Yamaha YZF-R1. We R1

There is a bike that stands head and shoulders above the rest. Pulsating with Yamaha’s legendary R-Series DNA, the race-bred YZF-R125 is your introduction to motorcycling’s most exclusive club.

This remarkable motorcycle has been developed using the same advanced technology that makes our larger capacity R-series models some of the most respected bikes on the street and track.

With its radical bodywork and features like upside down front forks and an aluminium swinging arm – as well as a short-stroke liquid-cooled engine and ABS – the YZF-R125 is built to thrill.


•  Ultimate class-leading 125cc supersport
•  Legendary race-bred R-series DNA
•  Race-type air intake between headlights
•  High-rigidity upside down front forks
•  Multi function LCD instruments
•  Highly efficient fuel injection system
•  Lightweight race-bred wheels with Y-shape spokes
•  High-tech radial front caliper with floating disc
•  Revised rear suspension linkage for added comfort
•  Forged aluminium rear brake pedal and shift lever


Yamaha - Motorcycles - YZF-R125

Liquid-cooled 4-stroke single cylinder engine

Featuring a free-revving short-stroke configuration, the liquid-cooled 125cc 4-stroke engine drives though a slick-shifting 6-speed gearbox to give ultra-responsive acceleration. Equipped with a highly efficient fuel injection system, the YZF-R125 delivers thrilling performance with outstanding fuel economy.

Yamaha - Motorcycles - YZF-R125

Lightweight aluminium chassis components

R-Series DNA is evident in the light and immensely strong aluminium swinging arm which ensures precision handling and confident roadholding. A redesigned rear linkage gives even greater riding comfort, and with the brake pedal, shift lever and passenger footrests all made from aluminium, the YZF-R125 has a leading specification.

Yamaha - Motorcycles - YZF-R125

Multi function LCD instrumentation

The YZF-R125 is equipped with one of the most sophisticated LCD instrument panels seen on a 125cc bike. Its comprehensive backlit display includes a digital speedometer with a bar type tachometer, and the advanced design also includes data on fuel level and fuel consumption, as well as distance and range trip meters.

Yamaha - Motorcycles - YZF-R125

R-series inspired bodywork

With its aggressive twin headlight fairing and central air intake, there's no mistaking the R-series heritage in the latest YZF-R125. The radical front cowl gives this class-leading 125cc supersport a genuine big-bike look and feel, and the slippery aerodynamic bodywork is ready to slice through the air for maximum riding excitement.

Yamaha - Motorcycles - YZF-R125

High-rigidity upside down forks

Just like the legendary YZF-R1 and WSS-winning YZF-R6, the YZF-R125 is equipped with upside down front forks which offer high levels of rigidity for precise and responsive handling characteristics. To emphasize the R-series racing heritage the front fender features a carbon-look finish, giving the YZF-R125 a real big-bike character.

Yamaha - Motorcycles - YZF-R125

Lightweight race-bred wheels

Lightweight wheels utilize a race-bred multi-spoke design featuring thin Y-shaped spokes that contribute to a low unsprung weight for responsive suspension action and precise handling. And with a 100/80-17 front tyre and wide section 130/70-17 rear tyre, this 125cc superport bike is built to slice though the bends.

Yamaha - Motorcycles - YZF-R125

High specification brakes with ABS

The YZF-R125’s advanced braking system is a spin off from our larger-capacity R-series models. Featuring a floating 297mm diameter disc, the high specification radially mounted caliper is designed to deliver strong and effective braking performance and outstanding initial response.

Technical specifications


Engine type
Single cylinder, 4-stroke, liquid-cooled, SOHC, 4-valves
Bore x stroke
52.0 mm x 58.6 mm
Compression ratio
11.2 : 1
Maximum power
11.0 kW (15.0PS) @ 9,000 rpm
Limited power version
Maximum Torque
12.4 Nm (1.25 kg-m) @ 8,000 rpm
Lubrication system
Wet sump
Clutch Type
Wet, multiple-disc coil spring
Electronic Fuel Injection
Ignition system
TCI (digital)
Starter system
Transmission system
Constant Mesh, 6-speed
Final transmission
Fuel consumption
2.13 l/100km
CO2 emission
49 g/km


Steel Deltabox
Front travel
130 mm
Caster Angle
89 mm
Front suspension system
Upside-down telescopic fork, Ø 41 mm
Rear suspension system
Swingarm, (Link type suspension)
Rear Travel
114 mm
Front brake
Hydraulic single disc, Ø 292 mm
Rear brake
Hydraulic single disc, Ø 230 mm
Front tyre
100/80-17 M/C
Rear tyre
130/70-17 M/C


Overall length
1,955 mm
Overall width
680 mm
Overall height
1,065 mm
Seat height
825 mm
1,355 mm
Minimum ground clearance
155 mm
Wet weight (including full oil and fuel tank)
142 kg
Fuel tank capacity
11.5 litres
Oil tank capacity
1.15 litres