Key performance

15 ch
Power
🔧
124 cc
Displacement
⚖️
135 kg
Weight
🏎️
120 km/h
Top speed
💺
785 mm
Seat height
11.0 L
Fuel capacity
💰
4 200 €
New price
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Technical specifications

Engine

Displacement
124 cc
Power
15.0 ch @ 10500 tr/min (11.0 kW)
Torque
11.0 Nm @ 8500 tr/min
Engine type
Monocylindre, 4 temps
Cooling
liquide
Compression ratio
11 : 1
Bore × stroke
62 x 41.2 mm
Valves/cylinder
4
Camshafts
2 ACT
Fuel system
Injection Ø 32 mm
Starter
électrique
Euro standard
Euro 5+

Chassis

Frame
Structure en tubes d'acier carrés
Gearbox
boîte à 6 rapports
Final drive
Chaîne
Front suspension
Fourche téléhydraulique Ø nc
Rear suspension
Mono-amortisseur

Brakes

Front brakes
Freinage 1 disque Ø 290 mm, étrier 2 pistons
Rear brakes
Freinage 1 disque Ø 187 mm, étrier simple piston
Front tyre
90/80-17
Front tyre pressure
1.75 bar
Rear tyre
130/70-17
Rear tyre pressure
2.00 bar

Dimensions

Seat height
785.00 mm
Seat type
Selle biplaces
Fuel capacity
11.00 L
Weight
135.00 kg
New price
4 200 €

Overview

Since its creation, the GSX-S125 has only seen changes in its color schemes and requirements related to regulations. The latest of these is Euro5+, which Suzuki is offering this little roadster to ensure it remains in the battle of the small bikes. But what does the little GSX-S think when it sees its 950 and 1000 big brothers?

Adrenaline-fueled questions dominate, as aggressive roadsters have taken over. With chassis and engines borrowed from the most radical sportbikes, these machines don't hold back. The offer is plentiful in the mid and high displacement categories. However, motorcycles of this caliber in 125cc are not common. Is this due to their modest power? But things have been changing recently.

With its MT-125, Yamaha offered something far more enticing than its YBR. KTM provoked emotions with its Duke 125. The Tuono 125 is back. Kawasaki has just entered the scene with the Z 125. And Suzuki intends to mark its presence in this niche. Especially since it has a strong appellation in stock: GSX-S. The 1000 recently tipped Suzuki into the dark side of large streetfighters, the 950 is arriving to devour a share of the juicy mid-displacement market, and the 125 GSX-S is now coming to complete the offer for the 1/8th-liter crowd.

To design this little powerhouse, the manufacturer started with the GSX-R 125. The frame, components, and engine are retained, then the bodywork is adapted. And that's where the first surprise comes in. With such a name, one might expect a GSX-S750 in miniature. Not at all. The GSX-S 125 has its own identity, hooked into the lower fairing, edgy on the shoulders, and intriguing in its appearance. Opinions may be divided regarding this face, globular and chubby.

Within its steel square-tube chassis, Suzuki has installed the 124.4 cc engine from the mini-sportive. Equipped with a 32 mm injection, double ACT, 4 valves, and liquid cooling, this single-cylinder engine aims to deliver its legal 15 hp with outstanding acceleration performance. The overall weight of the motorcycle should help in this exercise. The GSX-S 125 weighs 135 kilograms at the scales, 7 units more than the slender Duke 125 and CBF 125, but 3 less than the MT-125.

Petal brake discs, 10-spoke wheels, ABS, and a digital dashboard are also borrowed from the GSX-R. On the other hand, the high handlebar (10 cm taller than on the Gex) and one of the lowest saddles in the category should ensure dynamic riding with a much greater level of comfort than on the sportive. On the other hand, Suzuki has not transposed its keyless start system. A pity. Instead, we get an obturator system at the contactor... we're still looking for the use of this thing. Starting seems to be a major concern for Suzuki, which installs its Easy Start everywhere, and thus on the GSX-S 125. A press, and it turns on its own until the engine is launched. 2020 brought it slight modifications, with the presence of a warning light on the right handlebar and a black display for the dashboard.

Suzuki is pursuing a segment it hasn't known since the 125 GN. Its GSX-S 125 is light-years away from its ancestor. It will have to tackle already well-established and confident competitors. Rebellious, it wants to rely on its mini-GSX-R internals to make a name for itself and a position. A good price should help all of this.

Standard equipment

  • Assistance au freinage : ABS
  • Jantes aluminium
  • Indicateur de vitesse engagée
  • Aide au démarrage

Practical info

  • La moto est accessible aux permis : A, A1, A2

Indicators & positioning

Weight-to-power ratio
0.11 ch/kg
🔄
Torque / weight
0.08 Nm/kg
🔧
Volumetric power
119.0 ch/L
In category Naked bike · 62-249cc displacement (653 motorcycles compared)
Power 15 ch Top 34%
9 ch median 14 ch 24 ch
Weight 135 kg Lighter than 51%
104 kg median 135 kg 160 kg
P/W ratio 0.11 ch/kg Top 41%
0.08 median 0.11 0.15 ch/kg

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