I have a 2011 xt 125x. It's done 19000 miles, although the speedo reckons it's done 18000 as it keeps changing it's mind and displaying ten mph less than my actual speed/ distance. It's very good on fuel, 80 mpg plus, it will sit at around 50 mph, maybe 65 flat out with a tail wind[ don't believe people who say 125's go 80 mph, they really don't, I've owned 8]. Exhaust is rusty but still holding together, shock is still fine, suspension is a bit thin but the oem fork seals lasted 15000 miles. Has a stupid diaphragm fuelling system meaning when you remove the fuel tank you get loads of fuel spitting at you[ why not use a petcock??] wheels/ spokes are fine, never needed looking at, headlight attachment is stupid and irritating to remove to change the headlight bulb, swap it for one held on with rubber straps! airbox connector to the carb is quite weak plastic and has snapped on mine. I removed the egr valve and noticed a small power improvement. Seat is very very comfy, I've done 200 miles in one go on the bike without even refuelling! It's only broken down three times in three years of ownership- two of those are because of dirt blocking the pilot jet[ easy fix but irritating] another was the clutch going nuts. At 10,000 miles, when releasing the clutch there was a banging sound. I've changed the whole clutch system, numerous plates, checked the throwout rod and bearing, pressure plate, basket, fitted genuine and aftermarket cables, nothing fixes this issue. It's all right if you're riding around and not stopping, but filtering and going down to first and second a lot is annoying, it's so clunky. I think as other owners of bikes with this engine have had the same issue it must be a gearbox issue. Apart from all that, it is a great little bike, it starts easily, parts are very cheap and easy to get from the factory in china, my tyres last at least 5000 miles, brake pads last years, I've only gone through two sets and still on the original brake discs! You can jack the suspension up too on the swingarm as the bike is too low standard, I've fitted bar risers so it isn't as cramped. It has held 50 mph with me [12 stone] and my gf 8 stone] on it. Valve clearance checks are really easy and can be done in an hour. If you want it to look better, cut off the stupid tail tidy they come with and fit an enduro one, cut off the plastic under the subframe and make sure you leave the three wires intact for the brake light and indicators. I got mine for 1200 pounds with 5000 miles as it was a cosmetic cat c, but I don't think it's worth the three grand price tag it came with new. If you can get one of these used for under 1500, get it, but the serious contender would be a lexmoto adrenaline or sinnis apache, both are just as good as the yamaha and at a much more affordable price.

Bad build quality clocks get water in and don't work Thayer are very basic common fault so yamaha want £225 for new ones wot rubbish best thing about the bike is the motor we have 3 of these all with speedos not working properly cost yamaha £25 to build but Thayer want £225 new used ones leon in 60 seconds

Let me tell you about my mates brand new 58 plate xt125x, lets start with the power, slowest bike on the road I got a 50cc nrg and its faster, Faster on acceleration faster on top end just faster all round, secondly the faults. He replaced the choke cable 4 times kick start keeped making violent noise front break got Jamed on exhaust fell to bits literally to bits and it hasn't got a paint job they just used different colour plastic i can't believe The build Quality Off This bike I would advise everybody to not bye one of these bikes U will be very very very disappointed.

It's a good bike, and an excellent game. But it's too expensive. So do not buy it new.

I passed my cbt in april 2010 and i've had my yamaha xt125r on a 58 plate for six months and its the best bike ive had.
Since passing my cbt i went abit mad with bikes and this is my forth bike but now im staying with this one.It starts everytime and its the fastest bike out of the 4 bikes ive had.It will easy do 65mpm on the flat and going down hill its goes about 85-90mph.petrol cost me about £10 to fill it up and it does around 130 miles on a full tank.The only downside of the bike is the sound of the exhaust is very quiet so im just being a big kid and im going to put a new exhaust on it.The best one i can find is the arrow end can.I was going to put a devil end can on it but you can only put the end can on the xt.But the only exhaust i can find where i can put the full piping all the way to the engine is the arrow which will make the bike sound alot better and make the bike move quicker from setting off and top end speed.The only other bike on the 125cc market what is faster then the xt is its two other yamaha's the wr and the yzfr but to ride one of them i think you got to be over 6 foot tell or i would buy one as im 5ft 11 and ive been to the shop looking at them and sat on them and i just think they way to big for me and they both have fuel injection where the xt doesnt have this so everytime its cold in the morning you got to put the choke on to wake the engine up where on the wr and yzfr you wouldnt need to do that cause it hasnt got a choke cause its fuel injected which is alot better just like my first and 2nd bikes had which where a gilera dna..I hope this helps you buying a yamaha xt125r....
mark age 33 from manchester

The longer I have this bike,the more I love it.Started out not being too crazy about it,I bought it in a hurry after my Honda XR123L was stolen and initally wasn't impressed with the side stand and a few other things it did differently from what I was used to on the Honda.But after a while I started to get a feel for it and it is game little bike with good torque.Starts on the button even after being laid up for a few days and would run all day if you didn't "whip" it.Purrs along nicely @ 50 which is fine by me.Is better at climbing a nearby hill than the last bike,but that might be down to the road tyre on the Yam.I would recommend this bike to anyone just watch out for rust and dry the bike before covering/garaging it,a quick squirt of WD40 on the exposed metal is good.Mine is three years old and looks great still.

well i hve a yamaha xt 125x and i hve been having loads off problems my headlight blows every couple off weeks .. had a engine rebuild .... shity brake calibers are on bike so i put good ones on (strong ones)...... mine sounds like the 600 and i am puttin a new main jet in the bikle to get more top end .. my clutch cable broke yesterday so i need tht.... my clocks always go blank but if u move ur brake cables it will come back on ...

best bike ever shame about the limited speed when first bought but as always theres ways around that ;P

worst bike in the world had 12 faults in 7 month and yamaha are still trying to fix it. new speedo new wiring loom, new battery, new netral switch, new clocks and the head light bulb blows all the time put 6 new bulbs in in the last 3 weeks and its stiil not fixed and had a new ignition coil the list just goes on and yamaha still wont give me a refund or a new bike worst ever service in the world. The top speed wont take you past 62mph, only good point is it will give you 80
+mpg....

the standard xt is good add a full arrow system and the Yamaha XT125X wil make it sound beyond loud defo sounds like a 600 defo head turner!

brilliant bike to start off with, handles well and is alot fun. used to have a xt125r still sum one stole it. so going to try the xt125x. i would recomend either of these bikes

The Yamaha XT125X starts well ,cheap on juice ,pulls well through the gears good all round on or off road ,