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  • 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.

  • 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.

  • 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.

  • 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.

  • 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 emphasise the R-series racing heritage the front fender features a carbon-look finish, giving the YZF-R125 a real big-bike character.

  • Lightweight race-bred wheels

    Lightweight wheels utilise 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.

  • 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.


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

Fuel system

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

Wheel base

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

Models available


All prices include On-the-Road preparation charges, delivery to dealer, number plates, pre-delivery inspection, petrol and VAT at 20%. Government first registration fee and Vehicle Excise Duty is excluded and will be charged additionally at the prevailing rate.

£ 4,649.00

Always wear a helmet, eye protection and protective clothing. Yamaha encourage you to ride safely and respect fellow riders and the environment. Images shown depict professional riders performing under controlled conditions. Specifications and appearance of Yamaha products as shown here are subject to change without notice and may vary according to requirements and conditions. For further details, please consult your Yamaha dealer.