Key performance
Technical specifications
Engine
- Displacement
- 124 cc
- Power
- 10.0 ch @ 8250 tr/min (7.4 kW)
- Torque
- 9.8 Nm @ 5500 tr/min
- Engine type
- Monocylindre, 4 temps
- Cooling
- par air
- Compression ratio
- 10 : 1
- Bore × stroke
- 54 x 54 mm
- Valves/cylinder
- 4
- Camshafts
- 1 ACT
Chassis
- Frame
- simple berceau dédoublé en acier
- Gearbox
- boîte à 5 rapports
- Final drive
- Chaîne
- Front suspension
- Fourche téléhydraulique Ø nc, déb : 170 mm
- Rear suspension
- Mono-amortisseur, déb : 190 mm
Brakes
- Front brakes
- Freinage 1 disque Ø 245 mm
- Rear brakes
- Freinage 1 disque Ø 220 mm
- Front tyre
- 90/90-21
- Rear tyre
- 120/80-18
Dimensions
- Seat height
- 860.00 mm
- Fuel capacity
- 10.00 L
- Weight
- 120.00 kg
- Dry weight
- 111.00 kg
- New price
- 2 849 €
Overview
Are you looking for an A2 125 trail bike that isn't just a city bike disguised with plastic fenders? Step back to 2010 and take a look at the Yamaha XT 125 R. This machine embodies the pure DNA of the brand with the tuning forks, a true little adventurer that doesn’t cut corners on its pedigree. It won't offer you horses by the dozens, with its modest 10 hp at 8250 rpm and a torque of 9.8 Nm, but it will give you something far more valuable: the freedom to leave the beaten path without complexes.

The secret to its character lies in its authentic proportions. A simple steel cradle frame, a contained weight of 120 kg fully fueled, and above all, these generously sized tires: a 90/90-21 at the front and a 120/80-18 at the rear. These figures, which you’ll find in any technical specification sheet for the Yamaha XT 125 R, are not bluff. They give it a foothold on trails that "look" trail bikes with 17-inch rims can’t even approach. With 170 mm of fork travel and 190 mm of shock travel, it swallows potholes and forest trails with a surprising aplomb for a 125. The seat height of 860 mm may be impressive on paper, but the low center of gravity and the actual low weight make it much more maneuverable than it appears.
Compared to its competitors of the time, often too focused on asphalt, the XT 125 R fully embraces its versatility. The braking, provided by two discs (245 mm at the front, 220 mm at the rear), is more than honest for this weight. The 10-liter tank promises correct range for excursions, even if the maximum speed approaching 110 km/h makes it a machine for departmental roads and trails, rather than the highway. That's its whole philosophy: it's not made for pure performance, but for serene exploration. A maintenance manual for the Yamaha XT 125 R and a bit of simple mechanics will be enough to keep it in good shape for years.
Today, if you are looking for a used Yamaha XT 125 R, models from 2005 to 2008 represent excellent value for money for a first trail bike. They share the essentials with this 2010 model: the same square (54 x 54 mm) and robust 4-stroke single-cylinder engine, a simple mechanics that forgives minor maintenance oversights. It's the ideal motorcycle for the aspiring traveler or the young license holder who really wants to leave the pavement without breaking the bank. The then new price, around 2850 euros, seems today a sweet dream, which makes its used versions even more attractive.
So, is it the perfect machine? No. You’ll quickly get around its 10 horsepower on the road, and some will regret the absence of a more modern dashboard. But if your criterion is authenticity, mechanical simplicity, and that unique feeling of being able to turn onto the next forest track without thinking twice, then this little Yamaha is a guaranteed favorite. It doesn’t pretend, and that’s its strength.
Practical info
- La moto est accessible aux permis : A
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