2012Yamaha YZF-R125

★ 4.3

42 fields on record

The 2012 Yamaha YZF-R125 is an entry-level sport bike designed for new riders and commuters seeking an affordable, nimble machine. Its lightweight 125cc liquid-cooled engine delivers adequate power for urban riding and highway cruising, while the aggressive YZF styling appeals to riders wanting sportbike aesthetics without premium costs or complexity.

Capacity: 124.7 ccm
Engine: Single, four-stroke
Gearbox: 6-speed
Dry weight: 126.5 kg
Seat height: 818 mm
Power: 14.8 HP (10.9 kW)

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What’s new for the 2012 Yamaha YZF-R125

vs the 2011

Spec	2011	2012
Power	14.8 HP (10.9 kW) @ 9000 RPM	14.8 HP (10.9 kW)
Rear suspension	Swingarm (monocross)	Linked monoshock with spring preload adjustment

Other years 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering95%

City riding25%

Daily riding25%

Touring20%

Two-up15%

Track98%

Best for: Built primarily for track riding and high-performance sport road use, with race-derived electronics and chassis geometry prioritizing outright speed and cornering precision.
Built for: A razor-sharp, race-bred superbike that rewards commitment and skill with explosive acceleration, crossplane-crank character, and pinpoint cornering ability.
Not ideal for: Not suitable for beginners, commuters seeking comfort, or riders wanting a relaxed upright touring or passenger-friendly experience.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 818mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with balls of both feet on the 2012 Yamaha YZF-R125, with a cramped knee angle of around 70 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine

Capacity: 124.7 ccm
Power: 14.8 HP (10.9 kW)
Torque: 12.2 Nm (1.2 kgf-m) @ 8000 RPM
Engine type: Single, four-stroke
Power/weight ratio: 0.1170 HP/kg (dry)
Bore x stroke: 52.0 x 58.6 mm
Compression: 11.2:1
Cooling system: Liquid
Fuel system: Injection
Starting: Electric
Ignition: TCI (digital)
Valves per cylinder: 4
Lubrication system: Wet sump

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet, multiple-disc coil spring

Dimensions & weight

Wheelbase: 1355 mm
Overall length: 2015 mm
Overall width: 660 mm
Overall height: 970 mm
Seat height: 818 mm
Dry weight: 126.5 kg
Wet weight: 138.0 kg
Fuel capacity: 13.80 litres
Ground clearance: 155 mm
Oil capacity: 1.20 litres

Chassis & suspension

Frame: Steel Deltabox
Front suspension: Telescopic forks
Rear suspension: Linked monoshock with spring preload adjustment
Front wheel travel: 130 mm
Rear wheel travel: 125 mm
Rake (fork angle): 24.2°
Trail: 86 mm

Brakes & wheels

Front brakes: Single disc
Front brakes diameter: 292 mm
Rear brakes: Single disc
Rear brakes diameter: 230 mm
Front tyre: 100/80-M17
Rear tyre: 130/70-M17

Other

Color options: Grey, blue, white

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2008	2012	2013	2017	2022	2026
Capacity	125 cc	125 cc	125 cc	125 cc	125 cc	125 cc
Dry weight	127 kg	127 kg	127 kg	127 kg	127 kg	127 kg
Seat height	818 mm	818 mm	818 mm	818 mm	825 mm	820 mm
Fuel capacity	13.8 L	13.8 L	13.8 L	11.5 L	11.5 L	11 L