Model Description

An Unbeatable Package GSX-R125

A true sportsbike. GSX-R125, the best power-to-weight ratio, torque-to-weight ratio and acceleration, plus nimble handling and great fuel economy in the 125cc class.

New GSX-R Engine

There is a science to building high-performance engines and the GSX-R125’s DOHC engine is a perfect example of how to make a lot of power out of a very efficient and compact power plant. This power combines with strong torque and exceptional fuel economy, to create an engine worthy of the GSX-R marque.

Advanced Rider Technology

The GSX-R125 features some of our most advanced rider technology, including our all new key-less ignition system, and Suzuki Easy Start System.

Model Specification

  • Engine

    Engine Type

    4-stroke, 1-cylinder, liquid-cooled, DOHC

    Engine Displacement

    124 cc

    Fuel System

    Fuel injection


    Electronic ignition


    Wet sump


    6-speed, constant mesh

    Final Drive


    Fuel Capacity

    11.0 L (2.4 UK gallons)

  • Dimensions

    Bore x Stroke

    62.0 mm x 41.2 mm (2.4 in x 1.6 in)

    Compression Ratio

    11.0 : 1


    2000 mm (78.7 in)


    700 mm (27.56 in)


    1070 mm (42.1 in)


    1300 mm (51.2 in)

    Seat Height

    785 mm (30.9 in)

  • Frame

    Tyres Front

    90/80-17M/C, tubeless

    Tyres Rear

    130/70-17M/C, tubeless

    Kerb Mass

    134 kg (295 lbs)

  • Performance

    Brakes Front

    Disc (Petal)

    Brakes Rear

    Disc (Petal)

  • Suspension

    Suspension Front

    Telescopic, coil spring, oil damped

    Suspension Rear

    Link type, coil spring, oil damped