The Yamaha YZF-R125 is a sport motorcycle designed by Yamaha and manufactured by MBK Industrie since 2008. In 2023 the model is in its fourth generation.

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Yamaha YZF-R125

Manufacturer	Yamaha Motor Company
Also called	Yamaha R125
Production	2008–
Predecessor	Yamaha TZR125
Class	Sport bike
Engine	124.7 cc (7.61 cu in) liquid-cooled 4-stroke 4-valve SOHC single-cylinder engine[1]
Bore / stroke	52.0 mm × 58.6 mm (2.05 in × 2.31 in)
Compression ratio	11.2:1
Ignition type	TCI[clarification needed]
Transmission	6-speed constant mesh, wet, multiple-disc coil spring clutch, chain drive
Frame type	Steel twin-spar Deltabox
Suspension	Front: 41 mm inverted fork Rear: Swingarm (link type)
Brakes	Hydraulic disc; front: 292 mm floating disc Rear: 230 mm
Tires	Front: 100/80-17 Rear: 140/70-17
Rake, trail	25°, 89 mm (3.5 in)
Wheelbase	1,325 mm (52.2 in)
Dimensions	L: 1,990 mm (78 in) W: 755 mm (29.7 in) H: 1,140 mm (45 in)
Seat height	820 mm (32 in)
Fuel capacity	11.0 L (2.4 imp gal; 2.9 US gal)
Oil capacity	1.15 L (0.25 imp gal; 0.30 US gal)

First generation: (2008–2013)

In 2008, the bike initially came available as a four stroke replacement for the TZR125. Entering the thin market of small displacement 4-stroke sport bikes, it quickly gained traction and became a popular choice for young riders.

Specifications

Specifications for EU version.

Second generation: (2014–2018)

In 2014, Yamaha gave a facelift to the model, with a slightly tweaked fairing set, an upside-down front fork and a full LCD dashboard. The model launched without ABS, but it became an option for 2015. To comply with EU regulations, ABS is a standard equipment on all bikes since 2017. This may cause minor differences in weight, electric or other specifications.

Specifications

These specifications come from the owner's manual of a 2017 model with ABS.

Third generation: (2019–2022)

The 2019 model has a new rear swingarm, changes to the frame and bodywork, a new engine with Variable Valve Actuation (VVA).^{[clarification needed]}
There is a small 2021 update, that adds a vapor canister to the fuel system, presumably to help the bike comply with the more strict Euro 5 emission standard.

Specifications

As per the owner's manual of the 2021 model.

Fourth generation: (2023–on)

The bike yet again received a slight overhaul for the 2023 model year. The changes include some minor tweaks to the suspension like a different caster angle at the front (it is now 26°), and a shorter swingarm travel at the rear (it is now 110 mm down from 114 mm). The front half of the bike has reworked fairings and a new 5” full color TFT dash with smartphone connectivity.

References

External links

• Official website (United Kingdom)

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