presentation of the GSX-R125 2025
The GSX-R 125 took its time in upgrading to Euro5. Understandably in no hurry. The operation put 3 kilos on its stomach and slightly modified the engine data. Torque and power are preserved, provided you go for them at 500 rpm higher. Suzuki has discreetly redesigned the boot, certainly to accommodate the new catalytic converter.
15 horses and a small displacement, but a mythical name. This bike has an exceptional heritage in its retrospect. The GSX-R line has seen it all in circuit racing, won it all, taken it all. From the finest victories to bitter disillusionment, through unspeakable speeds and moments of doubt, the 'Gex' has weathered the years until its name has become almost mythical. After exploring a wide range of displacements, from the 50 cm3 to the 1340 Hayabusa, and especially the 750 cm3, Suzuki now offers it in a 125 cm3 configuration. At last, a small sports bike for young people, bearing the famous red R.
The GSX-R 125 had been rumored for some time. Echoes leaked out, but the manufacturer said nothing. Until the machine made its official appearance, surprising observers and immediately positioning itself as a machine to be reckoned with. This arrival had to command respect from the outset. Suzuki announces that its little GSX-R will boast an excellent power-to-weight ratio. Its silhouette makes you believe it without batting an eyelid: with its feline look, its design that finely reproduces the GSX-R codes and its eye-catching face, the youngest of the gex models can proudly stand next to its big brothers.
Sporty, yes, but not as sporty as some of the more aggressive models. For example, there are no inverted forks or radial calipers like on theAprilia RS 125. Instead, we have a conventional fork, an axial jaw and one brake disc per wheel. With ABS as standard. Enough to keep the engine's power in check. Suzuki's approach is not one of showmanship, but of efficiency. A classic, modern 4-stroke, single-cylinder, 4-valve, fuel-injected, double-actuated, liquid-cooled engine takes care of the overall velocity. According to the legislation, 15 grunts are expected at 10,500 rpm. To make the difference, Suz has announced that its 125 has the smallest frontal area in the category, and that the fairing parts are lighter than those used by the competition. The result is better acceleration and lower fuel consumption.

Well, yes, there is a key. But with contactless technology, just like on much higher-end motorcycles. All you have to do is carry it in your pocket, turn the switch and a simple press of the right thumb is all it takes to shake the mono. With the Suzuki Easy Start System, the starter remains engaged until the engine starts.
Alongside the R 125, Ninja 125, Aprilia RS 125 and KTM RC 125, the category will have to reckon with this player with a prestigious name.
M.B - Manufacturer's photos
Key facts Suzuki GSX-R125 (2025) : What you need to know before you buy
Highlights
- A pocket-sized GSX-R
- Sporty little thing for fun
- Look racing
Weak points
- Only 15 hp
- But not the right to do better
Prices
| Basic version | |
|---|---|
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4,999€
|
|
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4,999€
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|
|
4,890€
|
|
|
5,195€
|
|
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£5,199
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|
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5,495CH
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Performance
- Max speed : approximately 120 km/h (74.60 mph)
- Average fuel consumption : 2.40 liters/100km (0.98 mpg)
-
Estimated range
: 458 km (285 miles)
Calculated range until tank is empty, not verified.
Specifications Suzuki GSX-R125 2025
- Chassis
- Frame : perimeter
- Fuel capacity : 11 liters (2.91 US gallons)
- Oil capacity : 1.50 liters (0.40 US gallons)
- Seat height : 785 mm (30.91 in)
- Length : 1,975 mm (77.76 in)
- Width : 670 mm (26.38 in)
- Min height : 1,070 mm (42.13 in)
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Min. ground clearance : 150 mm (5.91 in)
- Wheelbase : 1,300 mm (51.18 in)
- Weight when fully loaded : 137 kg (302 lb)
- Front axle
- Telehydraulic fork Ø nc, Wheel travel : 110 mm (4.33 in)
- Angle de chasse : 25.5 °
- Braking 1 disc Ø 290 mm (11.42 in), 2-piston caliper
- Front tire : 90 / 80 - 17 → Order this type of tire
- Pressure : 1.75 bar
- Transmission
- 6 stage gearbox , manual
- Secondary by chain
- Rear axle
- Mono-damper, Wheel travel : 115 mm (4.53 in)
- Preload adjustment
- Braking 1 disc Ø 187 mm (7.36 in), single-piston caliper
- Rear tire : 130 / 70 - 17 → Order this type of tire
- Pressure : 2 bar
- Motor
- single-cylinder , 4 strokes
- Injection
- Cooling system : liquid
- 2 ACT
- 4 valves
- 124.40 cc
- 15 ch (14.80 hp) to 10,500 rpm
- 1.20 mkg (11 Nm) to 8,500 rpm
- Power-to-weight ratio : approximately 8.56 kg/ch
- Weight / torque ratio : approximately 105.58 kg/mkg
- Starting system : electric
- CO² emissions: 55 g/km
- Standard equipment
- Brake assist : ABS de serie
- Aluminium rims
- Gear indicator
- Start assist
- Keyless ignition
- Practical information
Competitors
Compare the GSX-R125 to its competitors
Fuel consumption
Range
Torque
Power
Power-to-Weight ratio
Torque-to-Weight ratio
Speed
CO² emissions
FAQ Your frequently asked questions about the GSX-R125 2025
- What is the power of the GSX-R125 2025?
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The GSX-R125 2025 develops a power of 15 ch (14.80 hp)
- What is the torque of the GSX-R125 2025?
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The maximum torque of the GSX-R125 2025 is 1.20 mkg (11 Nm) to 8,500 rpm.
- What is the maximum speed of the GSX-R125 2025?
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The GSX-R125 2025 is capable of reaching a top speed of approximately 120 km/h (74.60 mph) on the track.
- What is the weight of the GSX-R125 2025?
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The GSX-R125 2025 has a a weight when fully loaded of 137 kg (302 lb).
- What is the fuel consumption of the GSX-R125 2025?
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Average fuel consumption is estimated at 2.40 l/100km (0.98 mpg) according to the WMTC cycle.
- QWhat is the seat height of the GSX-R125 2025?
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To ensure good accessibility, the GSX-R125 2025 offers a minimum seat height of 785 mm (30.91 in).
- What is the price of the GSX-R125 2025?
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The price of the GSX-R125 2025 is 4,890€ in Austria. It is displayed at 4,999€ in France, in Belgium, at 5,195€ in Spain, at £5,199 in United Kingdom and at 5,495CH in Switzerland.
- What colors are available for the GSX-R125 2025?
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For the 2025 model year, the GSX-R125 is available in several colors: white / blue, black and red / black.
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Bikers' reviews Leave a review - 6 reviews
The clutch is super-smooth, which is also a rare comfort. Rating : 4/5 Respond to Guillaume
because you can have fun with small machines
thank you Rating : 5/5 Respond to jef