KAWASAKI NINJA 125 (2019 - on) Review

At a glance

Owners' reliability rating: 4.5 out of 5 (4.5/5)
Annual servicing cost: £2,500
Power: 15 bhp
Seat height: Medium (30.9 in / 785 mm)
Weight: Low (326 lbs / 148 kg)


New £4,199
Used N/A

Overall rating

Next up: Ride & brakes
4 out of 5 (4/5)

The new Kawasaki Ninja 125 is released alongside the Kawasaki Z125 which shares the same engine and chassis, but presents the package in a very different way.

It’s looking like a great year for lovers of the 125cc class and after an absence of 25 years, Kawasaki are amongst those offering A1 licence holders some serious street kudos. 

The Ninja 125 is eye-catching, attractive, sporty and instantly identifiable as being part of the Ninja family. Performance is on-par with the competition and the sporty handling is a breath of fresh air. It's easy-to-manage, predictable, controlled and the in right environment fun.

Kawasaki have re-entered the sporty 125 market by kicking the doors down. The established competition should be worried. It’s just a shame the rather dull dated clocks blemish what is an excellent A1 bike.

Watch: Kawasaki Ninja 125 video review

Ride quality & brakes

Next up: Engine
4 out of 5 (4/5)

The Ninja’s attractive trellis chassis and basic suspension, with only pre-load adjustment on the rear is again very similar to old Ninja 250SL.

It might be basic but it works. Kawasaki don’t appear to have cut costs on the suspension, both ends are on the sporty side, but have progressive damping and aren’t simply uncontrollable springs at either end like some ‘budget’ 125 machines.

The sporty set up still works around town, taking speed humps and large pot holes with relative ease and comfort. Stability is excellent, even when pushed beyond its design parameters.

Thankfully, Kawasaki haven’t economised on tyres either, decent Dunlop’s give enough grip and feel, more than enough for this type of bike on the road. Even the ABS assisted brakes aren’t bad – more than adequate.


Next up: Reliability
4 out of 5 (4/5)

Powered by a water-cooled, four-stroke 14.7bhp single-cylinder engine, which is loosely based on the old Kawasaki Ninja 250SL engine, peak power comes in at 10,000rpm, just 500rpm short of the redline and maximum torque of 8.7ftlb at 7,700rpm.

To get the most out of the engine you have to disregard any mechanical sympathy and thrash the poor little thing to near death. Flat out the digital display indicated 74mph; with a lighter rider and prevailing tail wind there possibly adding a few more mph, but not much more.

However, it was more than happy to buzz along at an indicated 60mph, with enough in reserve to slowly overtake trucks on the motorway, just.

The Kawasaki Ninja 125 engine

Overtaking ‘normal’ road traffic has to be planned with military precision, there’s not much left after 55mph. But below that the new Ninja is more than capable of embarrassing dawdling traffic as long as you keep the revs buzzing, which does result in some vibrations.

Reliability & build quality

Next up: Value
5 out of 5 (5/5)

Reliability shouldn’t be a problem as the motor is loosely based on the old Ninja 250SL, as are many of the suspension and chassis parts.

We don't have any Kawasaki Ninja 125 owners' reviews on the site yet, but you can leave one here.

Value vs rivals

Next up: Equipment
3 out of 5 (3/5)

Compared to rival Japanese manufacturers, the all-new Ninja 125 is priced above Suzuki’s GSX-R125 and Honda’s CBR125R, and is more on par with Yamaha’s YZF-R125, however it doesn’t have the technology of Yamaha’s new 125.

For new riders

The new Ninja 125 (and the Z125) is cradled in a typically Kawasaki trellis frame that apes the 125s bigger stablemates, and helps it to look anything but cheap beam-frame budget.

That sense of big-bike class is carried through the proportions of the bike with a visual balance that could fool you into expecting more capacity lurking within.

Kawasaki have done this with the aim of attracting new riders, who will then stay loyal to the brand as they progress through licencing categories. 

The paintjob and finish further reinforces the classiness, taking the Ninja 125 a long way from flat monotone tedium. Rock up at the pub or café on one, and you can pretty sure there’ll be no sniggering to be heard.


3 out of 5 (3/5)

ABS comes as standard, as do the digital clocks and petal brake discs (Single 290mm petal disc. Caliper: Dual piston up front and single 220 mm petal disc. Caliper: Dual piston on the rear).

The Kawasaki Ninja 125 petal disc

The level of finish is high, the frame projects a quality feel, but it’s a shame the clocks are a little dull. No mode button, no mpg or tank range, and no connectivity. It’s also missing a gear indicator which I would have expected on an entry-level A1 bike. While I’m having a grumble, the mirrors aren’t the best and the brake and clutch levers aren’t span adjustable.

In 2021 Kawasaki will sell you a load of optional extras to upgrade your Ninja 125. Examples include an Arrow exhaust, smoked windscreen, seat cover and engine sliders. 


Engine size 125cc
Engine type Liquid-cooled, four-stroke single
Frame type Tubular diamond, steel
Fuel capacity 11 litres
Seat height 785mm
Bike weight 148kg
Front suspension 37 mm telescopic fork
Rear suspension Uni-Trak, gas-charged shock with adjustable preload
Front brake Single 290 mm petal disc. Caliper: Dual piston
Rear brake Single 220 mm petal disc. Caliper: Dual piston
Front tyre size 100/80-17M/C 52S
Rear tyre size 130/70-17M/C 62S

Mpg, costs & insurance

Average fuel consumption -
Annual road tax £22
Annual service cost £2,500
New price £4,199
Used price -
Insurance group -
How much to insure?
Warranty term -

Top speed & performance

Max power 15 bhp
Max torque 8.6 ft-lb
Top speed 74 mph
1/4 mile acceleration -
Tank range -

Model history & versions

Model history

  • 2019: Ninja 125 launched.

Owners' reviews for the KAWASAKI NINJA 125 (2019 - on)

2 owners have reviewed their KAWASAKI NINJA 125 (2019 - on) and rated it in a number of areas. Read what they have to say and what they like and dislike about the bike below.

Review your KAWASAKI NINJA 125 (2019 - on)

Summary of owners' reviews

Overall rating: 4.5 out of 5 (4.5/5)
Ride quality & brakes: 5 out of 5 (5/5)
Engine: 5 out of 5 (5/5)
Reliability & build quality: 4.5 out of 5 (4.5/5)
Value vs rivals: 5 out of 5 (5/5)
Equipment: 4 out of 5 (4/5)
Annual servicing cost: £2,500
5 out of 5
30 May 2022 by Jesse Towler

Year: 2020

Annual servicing cost: £2,500

I have done 100.000 miles on my ninja 125

Ride quality & brakes 5 out of 5
Engine 5 out of 5
Reliability & build quality 5 out of 5
Value vs rivals 5 out of 5
Equipment 5 out of 5
4 out of 5 Good Beginner Bike
28 September 2021 by Sam

Year: 2019

Good bike for a beginner, done 4000 so far with no major issues so far. The only problem is with paint on the steering yoke and around the ignition barrel has faded quite early on.

Ride quality & brakes 5 out of 5
Engine 5 out of 5
Reliability & build quality 4 out of 5
Value vs rivals 5 out of 5
Equipment 3 out of 5
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