Skip to content

Yamaha XT125X Supermoto Motorbike Review

Find By Make/Model

1 of 8
Yamaha XT125X
Click to enlarge
Previous image Next image

MCN overall verdict rating is 3

Yamaha’s XT125X is Yamaha’s learner-friendly road going supermoto. The 125cc four-stroke machine is a scaled down version of the XT660X and has the same supermoto styling cues, like a big single front disc brake, aggressive styling, 17” wheels and wide tyres. Although learner riders are allowed to ride a 15bhp 125cc by law, the XT125X makes just 10bhp.


MCN rating rating is 3
Owners' rating rating is 4

Powered by a carburetted, air-cooled, single-cylinder, SOHC four-stroke motor, Yamaha has strangled the power output to 10bhp, which makes performance less than impressive. Power is delivered smoothly, though and the five-speed gearbox is nice and slick.    

Ride and Handling

MCN rating rating is 4
Owners' rating rating is 4

With a razor-thin seat and little wind protection, the XT125X is better for short squirts around town than for longer journeys, the tiny 9-litre fuel tank won’t get you that far anyway. It’s super-agile, lightweight (just 120kg wet) handles solidly and will even slide into roundabouts with a dab of rear brake like a proper big capacity supermoto. 


MCN rating rating is 3
Owners' rating rating is 2

The XT125X comes with a pretty basic spec, but you get spoked 17” wheels, supermoto styling and a big front disc brake set-up. Compare and buy parts for the XT125X in the MCN Shop.

Yamaha XT125X (2005-current)

Detail Value
New price £3,099
Used price range View Yamaha XT125X bikes for sale to see current asking prices
Engine size 124 cc
Power 10 bhp
Top speed 70 mph
Insurance group 5 of 17
  MCN ratings Owners' ratings
Overall rating is 3 rating is 2
Engine rating is 3 rating is 4
Ride & Handling rating is 4 rating is 4
Equipment rating is 3 rating is 2
Quality & Reliability rating is 5 rating is 1
Value rating is 4 rating is 1

Quality and Reliability

MCN rating rating is 5
Owners' rating rating is 1

The XT125X is durable, well made and reliable. The paint finish is good and the quality of the cycle parts is right up there too.


MCN rating rating is 4
Owners' rating rating is 1

With a £2999 price tag the Yamaha is good value for money. It’s a class above something like a sporty Kymco 125, which costs just a few hundred quid less. Resale values are healthy too. Find a Yamaha XT125X for sale


Insurance group: 5 of 17

Compare motorcycle insurance quotes now

Model History

Arrived in the UK in 2005

Other Versions

Yamaha XT125R (enduro-style )


Top speed 70 mph
1/4-mile acceleration secs
Max power 10 bhp
Max torque 7.5 ft-lb
Weight 120 kg
Seat height 860 mm
Fuel capacity 9 litres
Average fuel consumption mpg
Tank range miles
Annual road tax
Insurance group 5 of 17
Engine size 124 cc
Engine specification Single-cylinder four-stroke
Frame Tubular steel cradle
Front suspension adjustment None
Rear suspension adjustment None
Front brakes 260mm disc
Rear brake 220mm disc
Front tyre size 100/80 17in
Rear tyre size 130/70 17in

Owners' Overall Rating rating is 2(1 review)

  • Average rating rating is 2

    Show Details

    Ride and Handling
    Quality and Reliabilty

    I got my XT at the end of June last year, shortly after passing my CBT. I wanted a supermoto-styled bike and the dealer, A premier Yamaha dealership, convinced me that this was the bike for me. It had the same engine as the super-reliable YBR125, came with a top-box option for me to get my folders to and from college and looked brilliant. It was delivered on my 17th birthday and I don't think I stopped riding it for the rest of the summer. Round about October/November, things started to go wrong. When leaving college, I put the ignition on and turned around for no more than about 10 seconds to put my gloves on. When I turned around to get back on the bike, the ignition had died. No lights, no data on the speedo even though the keys were turned right the way round. Thinking the battery had died (which was odd enough, as it had full battery when I turned it on), I decided the best idea was to use the kick start to get the engine running and charging the battery. After about 10 minutes of failure, A fellow biker helped me to try and bump start it, to no avail. And so I was forced to make the first call to the RAC to use their roadside recovery (Free for a year when you buy the bike new, I won't knock Yamaha for that!). After checking the bike over it became evident the fuse had blown, which he changed. He put the keys in the ignition, turned the key and immediately the fuse blew and plumes of smoke spewed out of my ignition barrel. Fantastic. So the bike was recovered and taken back to the dealer, luckily this sort of thing is covered by the warranty. I got a call from the dealer about 2 days later, they claimed nothing was wrong with the bike, but the speedo had melted inside so they replaced it and asked me to pick it up. I did so, and about 2 weeks later, the bike died in the middle of the road, no engine, no electrics, all of it was dead. The bike was again recovered to the dealer who had to replace the wiring loom. They did so, and I was on the roads again, brilliant! Until I realised that my headlight had not been screwed back in and was just hanging, there was a loose wire behind my speedo and that my brake light wasn't connected to the front brake! Obviously this is the dealers fault, but it just adds to the corners Yamaha seem to cut with their products and services. Well this week it's just another problem. The bike refused to start, when it eventually did start it died 3 miles down the road and I ended up pushing it back because I had no way of contacting the RAC. I got home, called them out, and I was told the engine wasn't working properly because it was wet. I've heard some silly explanations, but that one tops them all. I think the funniest part of it was that he was completely right. It wasn't even raining, only just spitting, and the bike just refused to start. I could go on and on about how the bike dies at traffic lights because the engine doesn't rev high enough, how it has no fuel guage, how the speedo is about 10mph off most of the time, how the brake pads have to be replaced every 3 months because they're about as durable as a clump of dust. The fact is, it's not worth the 3000 quid you pay for it. For 600 quid less, you can get yourself a YBR125. My brother purchased one at the same time as me, and quite literally nothing has gone wrong with it. They produce the same power (in fact, his is a little bit quicker than mine), the insurance is cheaper and it's fuel injected! No messing around in the winter when you're carb refuses to come out to play! Ok, it might not look as cool as you'd expect, but if there's anything I've learned from my experience with this toy, is that style over substance is the worst way to go! So there you have it, save the hassle and don't buy one. If you desperately want a yamaha, pick up a YBR125. If you want something a bit sportier, go for the Honda CBR125. I have multiple friends who have one, the oldest being an 04 plate, and they all highly recommend them. As for me, I'll be selling my XT over the next few weeks and picking up a CBR!

    25 February 2012


Discuss this

Add your comment



Overall - Not a bad bike, i bought it almost 6 months ago, and run up about 3500 on it already. Upsides - -The electronic display, although the speedo is that accurate, the other display features are nice, the display includes: The time; Numerical rev meter; Trip meter; Odometer; acceleration meter; average speed display and a lap timer. you can also switch between rev bars and a battery meter. -The looks, although one of my friends hates the styling, i like it, as do most people, it does look good (I have mine in red, i believe it also comes in white and blue from stock) -Acceleration is good for the small power engine and the bike takes one hell of a beating. -Tyres were new when I bought the bike (3rd owner) and there fantastic, there nice a wide, so you fell confident and they dont slide around too much (as the review above says) -Choke, fantastic (even though FI would be better), one thing i hold over my friend is the choke, as with many modern bikes the choke is on the bars, instead of on top of the engine in an awkward place (as it is with the YBR). Downsides- -Power. Yeahhhh there inst much of this 10Bhp, in the UK the limit for a 125 is 15, the bike does 70 on flat, and ive read an indicated 75 (downhill, with wind, 5th gear, reving the b*lls of it), but again more power would be nice, the engine is the same as the YBR, but the YBR seems to have a faster top end. -Seat, not too comfortable, furthest ive done is about 150 miles in a day and i was a bit sick of it by then, but you get used to it. -Fuel gauge. Well, there isnt one. The tank is supposed to be 9L, there is a fuel light that is supposed to come on when theres only 3L left, but this is dependent on whether your going around a corner! All in all, a decent bike, not that powerful, but takes a beating, easy to repair, I would recommend this bike

17 April 2013 17:28



XT125X owner review

Having only passed my CBT in June 2009 and needing to learn some skills/build confidence, I bought one of these in October the same year courtesy of Yamaha's 0% finance over 3-years.

Anyway, back to the bike. Okay, it only has 10bhp, so it's never going to set the world alight in terms of performance, however for urban use and as long as you keep off dual carriageways it's pretty nippy.

Where it loses out in terms of outright performance it makes up for in handling, and does flick from side to side quite nicely. With a 100/80 tyre on a 17-inch front wheel it certainly turns in sharper than you'd think it would. At the rear is a 130/70 tyre on a 17-inch wheel, which also inspires confidence and has surprised me with how far it will lean over, even in the damp conditions that seem to be permanent this year. The standard fit seem to be Pirelli MT75's with a typical super-moto style grip pattern on them.

The front brake is certainly keen, and only using two fingers on the lever will have the forks diving, not to the point where you panic, however it certainly means you start to learn how to regulate your braking. For urban use, and at slow speed such as threading through queues and pulling up at traffic lights, the rear brake is good as this stops the 'kangaroo' look of the forks dipping under braking. This works best if you keep your speed steady and plan your approach.

With an 860mm seat height, you sit up reasonably high, and look over the tops of most cars which certainly helps when dealing with the urban jungle of towns and cities. Don't let the seat height put you off as I'm 5-feet 8-inches tall, with a 29-inch (for trousers that is) inside leg and I can get both feet nearly flat to the floor.

One slight downside is the headlight. On well lit urban roads it's not something you notice, however go down any kind of unlit road and it becomes apparent it only has 35w on both dipped and main beam.

So far, and thanks to the lovely weather we've had this year I've not had much chance to take it on any kind of longer trip to check out if the seat is any good, and if the single cylinder engine is going to be buzzy and cause vibrations through the bars etc.

In all honesty, even when I've built up the skills, taken the DSA full bike test and bought a bigger bike, I will still keep this and use it for the commute to work.

Overall impressions, if you want a bike that you can learn your road skills on, that looks reasonably cool (especially in White), then you should really consider this bike.

16 February 2010 02:30

Most popular

Rate my bike