The GT125 is equipped with Suzuki’s unique ram air system that ensures unparalleled cooling performance on long-distance or high-speed rides. It also features a 5-speed manual transmission that is ideally suited for a sporty street bike, as well as a 2.75-18-4PR front tire and a 3.00-18-4PR rear tire. An automatically adjusting hydraulic front disc brake and a Φ130 mm leading/trailing rod rear brake help to enhance braking performance at high speeds and in the wet.

The RG125 debuted in 1978 with updated styling from the previous GT125 model. Its 125 cm³ 2-stroke 2-cylinder engine generates maximum horsepower of 16 PS. The calipers of the front disc brakes were attached behind the forks to realize more agile handling. The other specs were carried over from the GT125.

This is a model change of the RG125. In addition to completely refreshed styling, the engine features a power reed valve instead of the conventional piston valve and aluminum cylinders with excellent heat dissipation. As a result, this engine realizes markedly higher torque in the low- and mid-rpm ranges, generating maximum horsepower of 16 PS and maximum torque of 12.75 N·m. Paired with a lightweight and highly rigid semi-double cradle pipe frame, the RG125 realizes stable maneuverability while cornering. It also features star-shaped cast wheels with greater rigidity to realize a more stable ride.

In addition to thorough weight-reduction around the frame and underbody, the RG125Γ is distinguished by its aggressive fully faired racer-inspired styling. The 125 cm³ liquid-cooled 2-stroke 1-cylinder engine is equipped with the Suzuki Automatic Exhaust Control (SAEC) system and generates maximum horsepower of 22 PS and maximum torque of 16.7 N·m . A large opposed piston type front disc brake delivers more powerful braking force. Low-profile tubeless tires are also provided as standard equipment for the first time in this class to enhance road-holding performance.

This is a full model change of the 1985 RG125Γ. The 125 cm³ liquid-cooled 2-stroke 1-cylinder engine is equipped with a crankcase reed valve and generates ample torque throughout the whole rpm range. Paired with the Automatic Exhaust Timing Control II (AETCII) exhaust device, this engine has a linear power curve and also comes with an electric starter. The chassis features inverted front forks and a new link-type rear suspension with excellent progressive characteristics, as well as large-diameter disc brakes at the front and rear to deliver stable cornering and riding performance. Another distinctive feature of the RG125Γ is the muscular styling of its fully faired body, which is normally found on larger 250 cm³ models.

The WOLF 125 is a naked model derived from the RG125Γ. It features the spacious body of a 250 cm³ model and projects a chic image that appeals to riders of all ages. The chassis adopts a highly rigid double cradle frame, and the 125 cm³ liquid-cooled 2-stroke 1-cylinder engine is equipped with a self-starter and a crankcase reed valve. Paired with the Automatic Exhaust Timing Control II (AETCII) exhaust device, this is an easy-handling engine that generates ample torque. A sleeveless design was adopted for the aluminum alloy cylinder for even greater weight reduction. Large-diameter disc brakes at the front and rear deliver stable and powerful braking force.