image de tracking facebook pour Meta
Motoplanete logo in English

Motorcycle specifications SuzukiGSX-S125 2025 The first fangs

Naked
Photo of Suzuki GSX-S125 2025

presentation of the GSX-S125 2025

Since its creation, the GSX-S125's only evolution has been the parsimonious renewal of its colors and its Euro 5 pass in 2022. This is a commitment for which it has had to make a few concessions. Maximum power is only available at 10,500 rpm, i.e. 500 rpm more than before. The same applies to torque. You'll recognize the GSX-S E5 by its new engine cover. As for the two kilos gained in the update, they should be invisible on the road. But what does the little GSX-S think when it sees its big brothers, the 950 and 1000?

When it comes to adrenalin, mean roadsters have taken over. With chassis and engines borrowed from the most radical sports bikes, these machines don't pull any punches. There's a plethora of medium and large-displacement models on offer. In 125cc, on the other hand, such bikes are few and far between. Is this due to their modest power? But for some time now, things have been moving.

Suzuki GSX-S125 2025 - 1Suzuki GSX-S125 2025 - 1
Suzuki GSX-S125 2025 - 2Suzuki GSX-S125 2025 - 2Suzuki GSX-S125 2025 - 3Suzuki GSX-S125 2025 - 3Suzuki GSX-S125 2025 - 4Suzuki GSX-S125 2025 - 4Suzuki GSX-S125 2025 - 5Suzuki GSX-S125 2025 - 5Suzuki GSX-S125 2025 - 6Suzuki GSX-S125 2025 - 6

With its MT-125, Yamaha has offered something far more exciting than its YBR. KTM provoked emotions with its Duke 125. The Tuono 125 is back. Kawasaki made its debut with the Z 125. And Suzuki intends to make its presence felt in this segment. Especially as it has a strong name in stock: GSX-S. The 1000 recently tipped Suz' over into the dark side of big streetfighters, the 950 arrived to take a slice of the juicy medium-displacement market, and the 125 GSX-S now completes the 1/8th-litre offering.

To design this little knockout, the manufacturer started with the GSX-R 125. The frame, peripherals and powertrain are retained, and the bodywork is adapted. And that's where the first surprise comes in. With such a name, you'd expect a miniature GSX-S750. But not at all. The GSX-S 125 has its own identity, hooked in the hoof, angry in the shoulders and intriguing in the face. Opinions can be divided as to the face, bulging and chubby.

Suzuki has installed the mini-sport's 124.4 cm3 block in its square tubular steel chassis. Equipped with 32-mm fuel injection, double ACT, 4 valves and liquid cooling, this single-cylinder engine intends to deliver its 15 legal horsepower with first-rate acceleration performance. The bike's overall weight should help in this exercise. The GSX-S 125 weighs in at 135 kilos, 7 more than the slender 125 Duke and CBF 125, but 3 less than the MT-125.

Suzuki GSX-S125 2025petal brake discs, 10-spoke wheels, ABS and digital instrument panel are also carried over from the GSX-R. On the other hand, the high handlebars (10 cm higher than on the Gex) and one of the lowest saddles in the category should ensure a dynamic ride with much greater comfort than on the sportbike. On the other hand, Suzuki has not transposed its keyless ignition system. That's a shame. Instead, we're treated to a shutter system on the contactor....... we're still trying to figure out what it's for. Starting seems to be a major concern for Suzuki, which installs its Easy Start system everywhere, including on the GSX-S 125. Just press the button, and the engine starts.
2020 had made some slight adjustments, with a warning light on the right-hand commodo and a black display for the dashboard.

Suzuki is pursuing a segment not seen since the 125 GN. The GSX-S 125 is light years ahead of its predecessor. It will have to tackle competitors who are already well-established and self-assured. A rebel, it wants to rely on its mini-GSX-R innards to make a name and a position for itself. A good price tag should help.

Key facts Suzuki GSX-S125 (2025) : What you need to know before you buy

Prices

Basic version
flag United KingdomUnited Kingdom
£4,999
flag AustriaAustria
4,490€
flag BelgiumBelgium
4,799€
flag FranceFrance
4,499€
flag ItalyItaly
7,190€
flag SwitzerlandSwitzerland
4,995CH

Bikers' reviews

of 10 reviews

Model sold in 2017 2018 2019 2020 2021 2022 2023 2024 2025

Replace GSX-S 125 2024

Photo of {name} {year}
GSX-S 125 2024

Performance

Specifications Suzuki GSX-S125 2025

Chassis
Two-seater saddle
Frame : Square steel tube structure
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 : 2,020 mm (79.53 in)
Width : 745 mm (29.33 in)
Min height : 1,040 mm (40.94 in)
Min. ground clearance : 155 mm (6.10 in)
Wheelbase : 1,300 mm (51.18 in)
Weight when fully loaded : 135 kg (298 lb)
Front axle
Telehydraulic fork Ø nc
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
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 Ø 32 mm
Cooling system : liquid
2 ACT
4 valves
124.40 cc (Bore x stroke: 62 x 41.2 mm)
15 ch (14.80 hp) to 10,500 rpm
1.20 mkg (11 Nm) to 8,500 rpm
Power-to-weight ratio : approximately 8.42 kg/ch
Weight / torque ratio : approximately 103.91 kg/mkg
Compression : 11 : 1
CO² emissions: 55 g/km
Standard equipment
Brake assist : ABS
Aluminium rims
Gear indicator
Start assist
Practical information
Take care of your motorcycle! Find all the parts and maintenance products you need to keep your bike in top condition.

Gallery

Models

2025

2024

2023

2022

2021

2020

2019

2018

2017

Compare the GSX-S125 to its competitors

Fuel consumption

Suzuki GSX-S125 2025 : 2.40 liters/100km (0.98 mpg)
Yamaha MT-125 2025 : 2 liters/100km (1.18 mpg)
Aprilia Tuono 125 2025 : 2.60 liters/100km (0.90 mpg)
CFMOTO 125 NK 2025 Undisclosed
KTM 125 Duke 2025 : 2.42 liters/100km (0.97 mpg)
Honda CB 125 R 2025 : 2.20 liters/100km (1.07 mpg)
Kove NK 125 R 2025 Undisclosed
QJ Motor SRK 125 S 2025 Undisclosed
Fantic Stealth 125 2025 Undisclosed
Yamaha XSR 125 2025 : 2.10 liters/100km (1.12 mpg)
Yamaha XSR 125 Legacy 2025 : 2.10 liters/100km (1.12 mpg)
Bluroc Motorcycles Legend 125 2025 : 3 liters/100km (0.78 mpg)
Zontes 125 Scrambler X 2025 : 2.50 liters/100km (0.94 mpg)
Zontes 125 U Roadster 2025 : 2.60 liters/100km (0.90 mpg)
Rieju NKD 125 2025 Undisclosed

Range

Suzuki GSX-S125 2025 : 458 km (285 miles)
Yamaha MT-125 2025 : 500 km (311 miles)
Aprilia Tuono 125 2025 : 558 km (347 miles)
CFMOTO 125 NK 2025 Undisclosed
KTM 125 Duke 2025 : 620 km (385 miles)
Honda CB 125 R 2025 : 455 km (283 miles)
Kove NK 125 R 2025 Undisclosed
QJ Motor SRK 125 S 2025 Undisclosed
Fantic Stealth 125 2025 Undisclosed
Yamaha XSR 125 2025 : 524 km (326 miles)
Yamaha XSR 125 Legacy 2025 : 524 km (326 miles)
Bluroc Motorcycles Legend 125 2025 : 467 km (290 miles)
Zontes 125 Scrambler X 2025 : 680 km (423 miles)
Zontes 125 U Roadster 2025 : 481 km (299 miles)
Rieju NKD 125 2025 Undisclosed

Torque

Suzuki GSX-S125 2025 : 1.2 mkg
Yamaha MT-125 2025 : 1.17 mkg
Aprilia Tuono 125 2025 : 1.17 mkg
CFMOTO 125 NK 2025 : 1.1 mkg
KTM 125 Duke 2025 : 1.3 mkg
Honda CB 125 R 2025 : 1.3 mkg
Kove NK 125 R 2025 : 1.2 mkg
QJ Motor SRK 125 S 2025 : 1.23 mkg
Fantic Stealth 125 2025 Undisclosed
Yamaha XSR 125 2025 : 1.17 mkg
Yamaha XSR 125 Legacy 2025 : 1.17 mkg
Bluroc Motorcycles Legend 125 2025 : 0.9 mkg
Zontes 125 Scrambler X 2025 : 1.3 mkg
Zontes 125 U Roadster 2025 : 1.3 mkg
Rieju NKD 125 2025 Undisclosed

Power

Suzuki GSX-S125 2025 : 15 ch (14.80 hp)
Yamaha MT-125 2025 : 15 ch (14.80 hp)
Aprilia Tuono 125 2025 : 15 ch (14.80 hp)
CFMOTO 125 NK 2025 : 14.40 ch (14.20 hp)
KTM 125 Duke 2025 : 15 ch (14.80 hp)
Honda CB 125 R 2025 : 15 ch (14.80 hp)
Kove NK 125 R 2025 : 13.90 ch (13.70 hp)
QJ Motor SRK 125 S 2025 : 15 ch (14.80 hp)
Fantic Stealth 125 2025 : 15 ch (14.80 hp)
Yamaha XSR 125 2025 : 15 ch (14.80 hp)
Yamaha XSR 125 Legacy 2025 : 15 ch (14.80 hp)
Bluroc Motorcycles Legend 125 2025 : 11.60 ch (11.40 hp)
Zontes 125 Scrambler X 2025 : 14.60 ch (14.40 hp)
Zontes 125 U Roadster 2025 : 14.60 ch (14.40 hp)
Rieju NKD 125 2025 Undisclosed

Power-to-Weight ratio

Suzuki GSX-S125 2025 : 8.42 kg/ch *
Yamaha MT-125 2025 : 8.95 kg/ch *
Aprilia Tuono 125 2025 : 8.85 kg/ch *
CFMOTO 125 NK 2025 : 10 kg/ch
KTM 125 Duke 2025 : 10.41 kg/ch
Honda CB 125 R 2025 : 8.14 kg/ch *
Kove NK 125 R 2025 : 8.91 kg/ch
QJ Motor SRK 125 S 2025 : 9.66 kg/ch
Fantic Stealth 125 2025 : 8.72 kg/ch
Yamaha XSR 125 2025 : 8.76 kg/ch *
Yamaha XSR 125 Legacy 2025 : 8.76 kg/ch *
Bluroc Motorcycles Legend 125 2025 : 9.65 kg/ch
Zontes 125 Scrambler X 2025 : 10.08 kg/ch *
Zontes 125 U Roadster 2025 : 9.58 kg/ch
Rieju NKD 125 2025 Undisclosed

Torque-to-Weight ratio

Suzuki GSX-S125 2025 : 103.91 kg/mkg *
Yamaha MT-125 2025 : 113.21 kg/mkg *
Aprilia Tuono 125 2025 : 112.01 kg/mkg *
CFMOTO 125 NK 2025 : 129.09 kg/mkg
KTM 125 Duke 2025 : 118.46 kg/mkg
Honda CB 125 R 2025 : 92.65 kg/mkg *
Kove NK 125 R 2025 : 101.67 kg/mkg
QJ Motor SRK 125 S 2025 : 116.26 kg/mkg
Fantic Stealth 125 2025 Undisclosed
Yamaha XSR 125 2025 : 110.85 kg/mkg *
Yamaha XSR 125 Legacy 2025 : 110.85 kg/mkg *
Bluroc Motorcycles Legend 125 2025 : 122.22 kg/mkg
Zontes 125 Scrambler X 2025 : 111.66 kg/mkg *
Zontes 125 U Roadster 2025 : 106.15 kg/mkg
Rieju NKD 125 2025 Undisclosed

Speed

Suzuki GSX-S125 2025 : approximately 120 km/h (74.60 mph)
Yamaha MT-125 2025 : approximately 110 km/h (68.40 mph)
Aprilia Tuono 125 2025 : approximately 120 km/h (74.60 mph)
CFMOTO 125 NK 2025 : approximately 120 km/h (74.60 mph)
KTM 125 Duke 2025 : approximately 115 km/h (71.50 mph)
Honda CB 125 R 2025 : approximately 125 km/h (77.70 mph)
Kove NK 125 R 2025 : 116 km/h (72.10 mph)
QJ Motor SRK 125 S 2025 : approximately 120 km/h (74.60 mph)
Fantic Stealth 125 2025 Undisclosed
Yamaha XSR 125 2025 : approximately 110 km/h (68.40 mph)
Yamaha XSR 125 Legacy 2025 : approximately 110 km/h (68.40 mph)
Bluroc Motorcycles Legend 125 2025 : approximately 100 km/h (62.10 mph)
Zontes 125 Scrambler X 2025 : approximately 110 km/h (68.40 mph)
Zontes 125 U Roadster 2025 : approximately 120 km/h (74.60 mph)
Rieju NKD 125 2025 Undisclosed

CO² emissions

Suzuki GSX-S125 2025 : 55 g/km
Yamaha MT-125 2025 : 47 g/km
Aprilia Tuono 125 2025 : 60 g/km
CFMOTO 125 NK 2025 Undisclosed
KTM 125 Duke 2025 Undisclosed
Honda CB 125 R 2025 : 50 g/km
Kove NK 125 R 2025 : 52 g/km
QJ Motor SRK 125 S 2025 Undisclosed
Fantic Stealth 125 2025 Undisclosed
Yamaha XSR 125 2025 : 47 g/km
Yamaha XSR 125 Legacy 2025 : 47 g/km
Bluroc Motorcycles Legend 125 2025 Undisclosed
Zontes 125 Scrambler X 2025 : 57 g/km
Zontes 125 U Roadster 2025 : 59 g/km
Rieju NKD 125 2025 Undisclosed

Bikers' reviews Leave a review - 10 reviews

Excellente gsx-s 125
Le 29/10/2024 This gsx-s 125 has been with me since May 4, 2024 and we've covered about 4200km. It's smooth but has great acceleration despite its small 15 horsepower. It's a pleasure to ride. Fuel consumption depends on your driving style, but it's fair to say that it's a light car. You can choose between sp95 or sp95. I'm fully satisfied. Rating : 5/5
Excellent
French Valou Model 2024
Exceptional vehicle Incredible power-to-weight ratio Well-calculated lightness for outstanding handling, without affecting excellent roadholding Ridiculous fuel consumption for very decent range, top speed and torque for more than decent acceleration, making it at ease on all types of roads (except freeways and trunk roads), ergonomics and access to controls that are very well thought-out and super-easy to use, low insurance costs. Rating : 5/5
Kilomètres
French GS BIKER Model 2021
Hello, how can I see the miles on this bike? It would help me to know when I finished my break-in. Have a nice day! Rating : 4/5
French Valou
The bike's mileage is shown on the odometer, below the time on the left of the gear engaged, with a series of 0's at the beginning of the gear, e.g. 0000315. Rating : 5/5
Taille des pneus
French Chico Model 2020
Can I use a larger tire width? Thanks
Slts
Rating : 4/5
bonne moto souple et sympa
French lolo Model 2019
hi i just got out of a mx 125 débridé it's been a month and a half that i own this gsxs and frankly it's happiness the conso,maniabilité the perf 13137 about on the odometer on fast lanes a week ago i did a running in of grandfather on 950 kms in town with e10 my girlfriend has a ktm duke of 2018 it's a little faster with 3200 km and of origin Rating : 4/5
French Artpak Model 2019
Excellent bike with very good handling and good acceleration, making it easy to get to safety on fast lanes.
Easy to handle and less expensive than its competitors.
Rating : 5/5
French Quador Model 2019
It really is superb! And beautifully finished. Rating : 5/5
Retex
French GigiRider95 Model 2018
Hello

I've owned the bike since October 2018.

Overall I'm very satisfied, it looks good, it's got pep even with the break-in underway (600km), it's sporty, maneuverable, and bikers make me the V and don't call me a mobylettist ahaha.

Suzuki has made a real engine (double ACT) that's flexible and very pleasant to drive, allowing you to rev it up (like all 125s, you'll tell me, but with flexibility and a very high shifter).

Of course, there are a few negative points:

- Front braking is effective but lacks real bite (a recurrent problem with the Suz), and I was going easy on the brake pads (too easy?), feeling like I was squeezing a sponge, but you get the hang of it.

- The shock absorbers are really hard, even hard-edged! Good for handling, but you can feel the slightest hole or speed bump.

- Hard seat: on a bike with a sporty seat, you can't complain too much, but the duo will be compromising on long trips, even if that's not what you want

Positives:

- Look (like it or not) really nice, just a little wider would have been more rewarding against a Mt125 or CB125R

- Engine character

- Gearbox flexibility

- Power delivery

- Handling

- Engine braking

- ABS

- Class-leading power-to-weight ratio

No topspeed yet, as I'm waiting for the break-in period to end, but I can feel that this little lady wants to get away with it! So I'm increasing it by 500rpm every 100km from the first 500km

In short, if it had an inverted fork and a more responsive front brake, it would have been 5/5!

But I'd recommend it to anyone who wants a 125 with a top quality/finish/performance/price ratio!

Of course, it's not as well-equipped as an MT or CB125R (especially the fork, which is classic), but the price and performance point me in the right direction, and in terms of performance it dethrones them!

V to all
Rating : 4/5
French Nono95 Model 2018
I tested the R version with fairing (same engine and equipment), with the aim of taking a 125 as a secondary vehicle with my B license, to go out and ride without going over the top.
Well, it's a marvel: the bike has plenty of torque and acceleration, and even though I didn't test the top speed, the data I'm given is 100% reliable.

The bike's got plenty of pep and, given the engine's flexibility, you can pull it in without having to go over 10,000 to get a good feeling (it goes up to 13,000)!

Good tires, a 125 that looks like a motorcycle compared to a YS125/CB125F (more utilitarian and more accessible and intended for the home/work trip)

This bike has nothing to envy its competitors (MT-125, CB125R) which are better equipped (forks, look and more) but more expensive for the same or even worse performance, especially as the GSXS has a mono with double ACT, which is rare!

In short, I'm thinking of snapping it up as soon as possible, because it's a real winner!
Rating : 4/5
Trop lourde!
French Jeff2A Model 2018
It's one thing for a 125cc engine to be legally prohibited from producing more than 15bhp. But to graft this engine block onto a machine that weighs over 130 kg dry, which means at least a dozen kilos fully loaded, that's a pity. The extra twenty or so kilos impact on the machine's agility in traffic, which in certain circumstances can prove dangerous, when overtaking for example. Nostalgic thoughts turn to the good old days of the early 1980s, when 125s were light (110/120 kg max) and already powerful enough (between 20 and 25 hp) to enjoy themselves without being road hazards! Rating : 1/5
French rebel48
Good evening,
On what criteria do you base your judgement?
Because having tried it, it's a great bike!
Different from the cb125f, and from the YS I've just tried in the next section, of course the price isn't the same, but I don't have the same feeling as you.
A good video test would tell us more about this beautiful machine.
Thank you very much.
Rating : 5/5
Leave your review about the Suzuki GSX-S125 2025

Essentials

You'll find everything you need (equipment, parts, tools, etc.) and much more at our partner Revzilla, with thousands of references available.
Follow the news

Be notified by email when a new entry is published in this category.

Your personal data is processed by the company that manages the Motoplanete site on the basis of your consent and is used to manage your alerts. To find out more and exercise your rights, please consult our personal data policy.