presentation of the 125 Duke 2021
Year after year, this Duke remains a real city knife. Looking back, the first evolution of the KTM 125 Duke was no slouch. To prove that it was the most unbridled (so to speak) of the 1/8th-liter models, the little Austrian gave itself quite a makeover in 2017, with real Superduke 1290 bits in it. Enough to turn it into a real class moth. 2021 brings a few changes, including Euro5 compatibility. This can be seen in the larger plenum in the middle of the exhaust line and the 2-kilo weight gain.
A slightly modified engine cover, two new colors, and off we go again. No facelift, no striking evolution... which the Katoche didn't need. Its 2017 redesign had set the bar very high. Its sharper profile, more assertive shapes and more nervous rear end make it a first-rate machine. The cladding is taut from end to end, slamming and modelling its vehemence on that of the big 1290 roadster. It feels both bigger and more dynamic. The fork head threatens, the shoulders jostle, the contents emancipate. Like the frame's rear loop, proudly displaying the company's emblematic orange, and now bolted to the main structure.
Compared to the very first 125 Duke, KTM has modified the rider and passenger footpegs, enlarged the saddles, increased the fuel tank capacity by 2.4 liters (13.4 L in total), installed an LED headlamp, simplified the sabot, retouched the front mudguard and improved certain components.

The enthusiastic Austrian single develops 15 hp at 10,000 rpm and 12 Nm of torque.
In addition to its styling, the KTM 125 Duke makes a big impact with its dashboard. Nothing less than a color TFT screen, worthy of much higher-end models (1290 Superduke R, SuperAdventure, Triumph 800 Street Triple R & RS, Yamaha R1, Honda CBR 1000, Ducati 1200 Monster, etc.). Note that the device can connect to a smartphone via Bluetooth thanks to the optional KTM MY RIDE, managing calls, the audio player, displaying notifications on the dashboard with handlebar control. A striking argument for the young clientele for whom this Katoche is primarily intended.
But all is not rosy. In 10 years, the smallest Duke has gained 11 kg. However, staying under 140 kg, it's still in the middle of its class. Confident in its achievements and striking in its lines, the KTM 125 Duke is more comfortable and geekier. There's no reason to turn your nose up at this machine, except for a price tag that places it among the more "cosseted" 125s.
M.B - Manufacturer's photos
Key facts KTM 125 Duke (2021) : What you need to know before you buy
Highlights
- Striking design
- Frame quality
- Cool engine
Weak points
- Price
- Increasing weight
Prices
| Basic version | |
|---|---|
|
5,250€
|
Performance
- Max speed : approximately 115 km/h (71.50 mph)
- Average fuel consumption : 2.42 liters/100km (0.97 mpg)
-
Estimated range
: 537 km (334 miles)
Calculated range until tank is empty, not verified.
History
Specifications KTM 125 Duke 2021
- Chassis
- Frame : chromium-molybdenum steel tube mesh
- Fuel capacity : 13 liters (3.43 US gallons)
- Seat height : 830 mm (32.68 in)
- Wheelbase : 1,357 mm (53.43 in)
- Weight when fully loaded : 139 kg (306 lb)
- Front axle
- Reverse telehydraulic fork Ø 43 mm, Wheel travel : 142 mm (5.59 in)
- Braking 1 disc Ø 300 mm (11.81 in), radial mounting, 4-piston caliper
- Front tire : 110 / 70 - 17 → Order this type of tire
- Pressure : 2 bar
- Transmission
- 6 stage gearbox , manual
- Secondary by chain
- Rear axle
- Mono-damper, Wheel travel : 150 mm (5.91 in)
- Braking 1 disc Ø 230 mm (9.06 in), single-piston caliper
- Rear tire : 150 / 60 - 17 → Order this type of tire
- Pressure : 2 bar
- Motor
- single-cylinder , 4 strokes
- Injection Ø 33 mm
- Cooling system : liquid
- 2 ACT
- 4 valves per cylinder
- 124.70 cc
- 15 ch (14.80 hp) to 10,000 rpm
- 1.30 mkg to 7,500 rpm
- Power-to-weight ratio : approximately 8.59 kg/ch
- Weight / torque ratio : approximately 97.83 kg/mkg
- CO² emissions: 56 g/km
- Standard equipment
- Brake assist : ABS de série
- Bluetooth
- Practical information
Used
Compare the 125 Duke 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 125 Duke 2021
- What is the power of the 125 Duke 2021?
-
The 125 Duke 2021 develops a power of 15 ch (14.80 hp)
- What is the torque of the 125 Duke 2021?
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The maximum torque of the 125 Duke 2021 is 1.30 mkg to 7,500 rpm.
- What is the maximum speed of the 125 Duke 2021?
-
The 125 Duke 2021 is capable of reaching a top speed of approximately 115 km/h (71.50 mph) on the track.
- What is the weight of the 125 Duke 2021?
-
The 125 Duke 2021 has a a weight when fully loaded of 139 kg (306 lb).
- What is the fuel consumption of the 125 Duke 2021?
-
Average fuel consumption is estimated at 2.42 l/100km (0.97 mpg) according to the WMTC cycle.
- QWhat is the seat height of the 125 Duke 2021?
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To ensure good accessibility, the 125 Duke 2021 offers a minimum seat height of 830 mm (32.68 in).
- What is the price of the 125 Duke 2021?
-
The price of the 125 Duke 2021 is 5,250€ in France
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Bikers' reviews Leave a review - 11 reviews
As for the tires, Michelin pilot street, they're not my favorites, with a tendency to chase from the rear on poor surfaces (the mt was equipped with the same rubber with the same problem). Otherwise, whether it's the mt or the duke, they're still 125cc bikes, so avoid 4-lane roads or freeways. As for the speedometer display, it's amazing, with an automatic night mode like the full-LED lights, and a complete display that can be modified. On the downside, if your tft display fails or breaks after a fall, it's 900€ without labor.ca pique. In conclusion, I don't regret my purchase. Rating : 4/5 Respond to Dadoum08
Easy to handle and light, it goes everywhere
A hell of a look
I've just passed the 1000km break-in
That's it, we're up and running. It's great. Rating : 5/5 Respond to Vévé
Merci d'avance Rating : 5/5 Respond to ElFabio20
We have to take it for what it is!
If you want speed (large-displacement license!), it's a pleasure to ride
On the other hand, it's a pleasure to ride, and for the spirited side, the term "playful" suits it well.
An honest, quality product.
Arrived in France from Quebec! My motorcycle license was only valid for a year. So I should have taken it again (there was no question of that)
I've rediscovered the pleasure of motorcycling, just as I did when I started out. And freedom on two wheels doesn't need speed to be appreciated Rating : 4/5 Respond to Hypo78
otherwise, for show, it's okay Rating : 5/5 Respond to pat
really top
10/10 Rating : 5/5 Respond to mikael72
I would like to know where you can buy it in Guadeloupe.
I have a ktm 125 harle style. And I'd like to change it for a sports bike...thank you for your feedback Rating : 5/5 Respond to Floflo