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YAMAHA MT-125 (2020-on) Review

Published: 03 December 2019

Updated: 27 January 2020

This is a 125 for young riders to be proud of, pairing quality components with excellent build quality

Dan Sutherland on the 2020 Yamaha MT-125

This is a 125 for young riders to be proud of, pairing quality components with excellent build quality

  • At a glance
  • 125cc  -  14.8 bhp
  • 133 mpg  -  292 miles range
  • Medium seat height (810mm)
  • Suitable for A1 licence
  • New: £4,449
    Used: £3,700 to £4,600 See all YAMAHA MT-125s for sale

Overall Rating 4 out of 5

The CBT-friendly Yamaha MT-125 has received its first major overhaul since its launch in 2014; bringing it in line with the rest of the ever-popular MT range with radical styling, improved performance and revised geometry.

The second-best-selling MT model in the UK, behind the parallel-twin MT-07, the vast majority of these changes were first seen on the fully-faired Yamaha YZF-R125, which was relaunched for 2019 with R6-inspired fairings, a new frame, fatter 140-section rear tyre and rim, a new engine complete with Variable Valve Actuation (VVA), an LCD dash and more.

Plastics aside, the new MT receives all of the above, offering teens a miniature supernaked they can be proud of, complete with big bike looks, excellent build-quality and an impressive spec sheet.

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Ride Quality & Brakes 4 out of 5

Shod with grippy Michelin Pilot Street tyres, cornering on the MT-125 is a joy to behold, making mincemeat of the congested urban sprawl and capable of carving through nadgery back roads without tying itself in knots.

Helped by the well-damped 41mm upside down KYB forks and a reworked preload-adjustable rear shock, the bike also gets a new steel deltabox frame and aluminium swingarm taken directly from the updated R125 sportsbike.

Dan Sutherland gets the best from the 2020 Yamaha MT-125

Now featuring a shorter, more rigid swingarm with a wider pivot, the wheelbase has been reduced and this has improved agility. There’s also a shorter rear subframe, designed specifically for this model.

Combined with the new 140-section rear tyre, the result is an engaging, sweet-handling motorcycle, capable of fast changes of direction, as well as remaining unintimidating to novice riders.

On the move, it’s also fairly comfortable, soaking up the vast majority of bumps in the road, and only let down in this respect by its hard seat and a persistent vibe through the bars from the buzzy little motor. What’s more, although fine for this 5ft6in tester, the riding position is quite cramped and could feel uncomfortable for a taller pilot over longer distances.

Hunched forward in an almost supermoto-like fashion, the reach to the wider 741mm bars (up from 680mm) has been shortened thanks to a new seat, revised shock settings and stubbier, wider tank, which sacrifices 1.5-litres of fuel capacity to give the MT more of a big bike presence. It also has more prominent air scoops.

Engine 5 out of 5

Gaining the liquid-cooled, single-cylinder 4v SOHC engine from the 2019 YZF, the bike now benefits from a Variable Valve Actuation (VVA) system.

Triggered at 7400rpm, a pin within the YZF-R125 engine switches the variable valve timing from low- to high-lift, improving performance significantly at the top end of the rev range. The maximum output of 14.8bhp (0.1bhp up on the previous MT-125) is available at 9,000rpm, with the redline pegged at 11krpm.

There’s also more midrange, meaning less time spent chasing gears to keep up with the flow of traffic. This is aided by a shortened the final gear ratio, which improves acceleration even further. A light clutch lever and smooth gear box also help you to progress through the cogs quickly.

2020 Yamaha MT-125 heading through tunnels on the launch, pilotted by Dan Sutherland

Signaled by a small ‘VVA’ icon on the logically-placed LCD dash, the system also helps deliver greater top end performance, creating more of an engaging riding experience when exploring more open twisty roads.

Also adding to this is a redesigned exhaust, which has be worked on for improved sound quality (and is very important when you’re 17). Delivering a charming purr from its standard end can, the motor is audible at any speed and really encourages you to work the bike hard to achieve the most from its output.

For smoother downshifts and a lighter lever action, there is also a slipper clutch, which uses less plates to achieve a lighter weight. As well as helping new riders as they get to grips with the manual box, the light lever also allows for optimum low-speed control when scything through city traffic.

Build Quality & Reliability 5 out of 5

Being so new it’s difficult to comment on the reliability of the MT-125, however owners’ reviews from MCN readers on the 2019-onwards R125 (which this bike is based on) suggest nothing but positivity, with four and five-star ratings across the board.

If purchasing on the used market, as with any 125, it’s important to check for a decent service history and any evidence of crash damage. For many owners, this is likely to be their first motorcycle, so tumbles are likely – as is sub-par maintenance.

Insurance, running costs & value 3 out of 5

Just £100 more than the outgoing MT-125 at its December 2019 launch, with a price of £4449, the MT-125 is an expensive proposition when considered alongside some of its rivals.

With Honda’s CB125R costing £460 less at £3989 (2019 price) and Suzuki’s GSX-S125 now just £3599 (with £500 promotional saving), there are cheaper bikes out there in the catagory.

That said, with the new styling, revised engine and sweet handling, these machines would struggle to match the overall package of the Yamaha, which feels like a well-finished high-quality product.

What’s more, when purchased on PCP over three years, it’s just over £70 a month – little more than some 17-year-olds would shell out for their monthly phone contract and online PlayStation account.

Equipment 4 out of 5

Despite being an entry-level motorcycle, the MT-125 boasts a spec sheet some larger-capacity machines could only dream of. With dual full-LED headlights, an easy-to-read LCD dash, complete with programable personal greeting, and new ‘big bike’ inspired looks, it’s hugely impressive.

Much like its fully-faired sibling, this is a 125 for young riders to be proud of, pairing quality components with excellent build quality.

Optional Akrapovic exhaust on 2020 Yamaha MT-125

For a little extra personalisation, Yamaha have also produced a number of accessories, including a ‘Sport Pack’ comprising a tank pad, smoked fly screen, engine protection, LED indicators and a tail tidy. There’s also an Akrapovič exhaust, which delivers a delightful burble, without being offensive.

Available in three colours; Ice Fluo (red and grey), Icon Blue and Midnight Black, it’s set to hit dealers around Christmas time, ahead of the 2020 riding season.

Facts & Figures

Model info
Year introduced 2020
Year discontinued -
New price £4,449
Used price £3,700 to £4,600
Warranty term Two years
Running costs
Insurance group -
Annual road tax £20
Annual service cost -
Max power 14.8 bhp
Max torque 8.5 ft-lb
Top speed -
1/4-mile acceleration -
Average fuel consumption 133 mpg
Tank range 292 miles
Engine size 125cc
Engine type Liquid-cooled, single-cylinder 4v SOHC
Frame type Steel Deltabox
Fuel capacity 10 litres
Seat height 810mm
Bike weight 140kg
Front suspension Upside down 41mm telescopic fork, non-adjustable
Rear suspension Single shock, preload-adjustable
Front brake Single 292mm disc, four-piston radial caliper
Rear brake Single 220mm disc, single-piston caliper
Front tyre size 100/80 x 17
Rear tyre size 140/70 x 17

History & Versions

Model history

2014 – Yamaha MT-125 launched based on the then-current Yamaha YZF-R125. No VVA featured on this model, with the bike fitted with the four-stroke 4v Minarelli engine found in the 2008-2018 R125. Although receiving a few incremental updates, the 2020 model is the first major change.

Other versions

Yamaha YZF-R125 – Launched at the beginning of 2019, the latest incarnation of Yamaha’s fully-faired 125 sportsbike provides the basis for the 2020 MT-125. Sharing the same frame, VVA engine, larger 140-section rear tyre and rim and more, the largest difference between the two machines is found in the styling department.

Yamaha MT range – Away from the sporty YZF, the MT-125 is the smallest in a long line of naked Yamaha road bikes, first launched in 2013. Comprising of the aforementioned 125, A2-compliant MT-03 (also updated for 2020), middleweight MT-07, three-cylinder MT-09 and full fat R1-derived MT-10, Yamaha have now sold over 235,000 MTs in Europe alone.

Owners' Reviews

No owners have yet reviewed the YAMAHA MT-125 (2020-on).

Review your YAMAHA MT-125 (2020-on)

Photo Gallery

  • Dan Sutherland on the 2020 Yamaha MT-125
  • 2020 Yamaha MT-125 static side profile
  • 2020 Yamaha MT-125 lights and headstock
  • 2020 Yamaha MT-125 engine
  • 2020 Yamaha MT-125 rear wheel in blue with Akrapovic exhaust can
  • 2020 Yamaha MT-125 in blue static
  • 2020 Yamaha MT-125 LCD screen
  • 2020 Yamaha MT-125 front wheel
  • 2020 Yamaha MT-125 static side profile in red and black
  • The 2020 Yamaha MT-125 heading through tunnels with Dan Sutherland riding
  • Dan Sutherland leaning over on the 2020 Yamaha MT-125
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