Key performance

11 ch
Power
🔧
125 cc
Displacement
⚖️
129 kg
Weight
🏎️
110 km/h
Top speed
💺
795 mm
Seat height
14.0 L
Fuel capacity
💰
2 999 €
New price
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Technical specifications

Engine

Displacement
125 cc
Power
11.0 ch @ 7500 tr/min (7.6 kW)
Torque
10.8 Nm @ 6000 tr/min
Engine type
Single cylinder, two-stroke
Cooling
Liquid
Compression ratio
10.0:1
Bore × stroke
54.4 x 57.9 mm (2.1 x 2.3 inches)
Valves/cylinder
2
Camshafts
1 ACT
Fuel system
Carburettor
Valve timing
Single Overhead Cams (SOHC)
Lubrication
Wet Sump
Ignition
CDI
Starter
Electric

Chassis

Frame
berceau tubulaire en acier
Gearbox
6-speed
Final drive
Chain   (final drive)
Clutch
O-ring chain
Front suspension
Telescopic fork
Rear suspension
Swing arm
Front wheel travel
120 mm (4.7 inches)
Rear wheel travel
112 mm (4.4 inches)

Brakes

Front brakes
Single disc. Hydraulic.
Rear brakes
Expanding brake (drum brake). Hydraulic.
Front tyre
2.75-18
Front tyre pressure
1.75 bar
Rear tyre
100/80-18
Rear tyre pressure
2.00 bar

Dimensions

Seat height
795.00 mm
Wheelbase
1320.00 mm
Ground clearance
150.00 mm
Length
2005.00 mm
Width
735.00 mm
Height
1050.00 mm
Fuel capacity
14.00 L
Weight
129.00 kg
New price
2 999 €

Overview

When we talk about a simple and efficient 125, we often think of the competition, that famous Honda CB125F vs Yamaha YS125. Yet, the YS125 is the story of a discreet renaissance. It doesn't just replace the old YBR; it buries an era. Where its predecessor was content to be an anonymous utility vehicle, the 2020 YS dares to have a style. It displays a streamlined front fairing, almost feline, and a completely blacked-out engine block that gives it an unexpected presence. It's a motorcycle that wants to do its job well, but while taking care of its appearance. For those who want to buy a Yamaha YS125, it's often this little extra soul that tips the balance.

Yamaha YS125

Underneath this retouched exterior, the soul remains fundamentally economical and urban. The 125cc single-cylinder engine has been extensively reworked, adopting a long-stroke architecture to gain torque where it's useful, namely from the first turns of the wheel in the city. The 10.8 Nm at 6000 rpm can be felt, and the 11 horsepower are enough to make it swallow the tarmac without complexes, with a top speed of 110 km/h. It’s tight, but that's the idea. The philosophy of the Yamaha YS125 Yamaha YBR 125 custom 2019 was absolute frugality. Here, we add a touch of character, without ever denying the DNA: a 14-liter tank for nearly 300 km of range, a contained weight of 129 kg and a 795 mm seat that suits most people. It's a machine made for everyday use, end of story.

The comparison is inevitable with the other city bikes in the segment. Faced with the Honda CB125F, often acclaimed for its legendary robustness, the YS125 plays the card of style and a slightly more lively chassis. Its back-bone frame and telescopic fork are of absolute simplicity, just like the braking system which combines a disc at the front and a drum at the rear, assisted by Yamaha’s UBS system. It's rudimentary, but remarkably effective for urban rides. What's surprising is the instrumentation, which swaps the old needle gauges for a modern analog/digital mix. A detail that shows that Yamaha wanted to evolve things, even on such a simple base.

So, who is it for? For the apprentice motorcyclist looking for a reliable and easy first bike, for the city dweller who is tired of traffic jams and wants an agile solution, or even for the veteran looking for a hassle-free motorcycle for short trips. Its Yamaha YS125 price, around 3000 euros at the time, positioned it as a safe and accessible value. It will never give you shivers in acceleration, and its rear drum recalls another era, but that’s precisely its charm: it’s an honest motorcycle, which fully assumes its role as a road worker without unnecessary frills. A solid base, with just enough spice to avoid being boring.

Standard equipment

  • Assistance au freinage : Frenado integral UBS

Practical info

  • La moto est accessible aux permis : A

Indicators & positioning

Weight-to-power ratio
0.08 ch/kg
🔄
Torque / weight
0.08 Nm/kg
🔧
Volumetric power
84.0 ch/L
In category Allround · 63-250cc displacement (1492 motorcycles compared)
Power 11 ch Top 65%
7 ch median 12 ch 24 ch
Weight 129 kg Lighter than 49%
90 kg median 129 kg 179 kg
P/W ratio 0.08 ch/kg Top 75%
0.07 median 0.09 0.16 ch/kg

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