R125

The R125 is a unique machine in the A1 license category. Built with the same racing DNA that gives Yamaha riders the edge they need to win in the SBK and MotoGP® World Championships, this aggressively styled, lightweight supersport is ready to bring you all the excitement and exclusivity that comes with riding deep into the world. The world R.

Take a look

  • High-tech 125cc engine with VVA system
  • Premium Color Icon Blue Duo-Tone with Matte Blue
  • Deltabox chassis for precise piloting and control
  • Lightweight aluminum swingarm improves stability at high speeds
  • A&S (assisted slipper) clutch
  • Dual-optic LED bodywork design inspired by the R range
  • 11 liter fuel tank
  • Cockpit inspired by the MotoGP® M1
  • High visibility LCD instruments
  • Sporty and comfortable riding position
  • Rear tire with 140 mm section width
  • Excellent braking performance

Redefine your reality.

As soon as you twist the throttle, you’ll discover why the R125 commands total respect on the street. Its powerful 125cc EU5 engine is equipped with Yamaha’s VVA power enhancement system to deliver exceptional performance and punchy acceleration, while its race-class A&S clutch gives you precise control of the bike on downshifts.

Like every other model in the R range, the R125 features a compact Deltabox frame fitted with an aluminum swingarm, plus a 41mm upside-down fork and lightweight tires for surprisingly agile cornering. A new two-tone Icon Blue color enhances its dynamic aesthetic, while the optimized handlebar position, generous seat padding and aluminum rearset footpegs provide a balanced and comfortable riding experience. Redefine your reality!

Technical specifications

Engine type: 4-stroke, Liquid-cooled, SOHC, 4-valve


Displacement:124.7cc


Bore x Stroke: 52.0mm x 58.6mm


Compression ratio: 11.2:1


Maximum power: 11.0kW (15.0PS) @ 10,000rpm


Maximum torque: 11.5Nm (1.16kg-m) @ 8,000rpm


Lubrication system: Wet sump


Clutch type: Wet, Multi-disc with spiral spring


Ignition system: ITC (digital)


Starting system: Electric


Drive system: Constant take, 6-speed


Final Drive: Chain


Approved consumption: 2.1l/100 km


CO2 emission: 47g/km


Carburettor: Electronic fuel injection

Chassis: Steel delta box


Pivot lead angle: 25°


Pivot advance: 89mm


Front suspension system: Inverted telescopic fork, Ø41mm


Rear suspension system: Swing Arm, (Link Type Suspension)


Front Travel: 130mm


Rear travel: 114mm


Front brake: Hydraulic single disc, Ø292 mm


Rear brake: Single hydraulic disc, Ø220 mm


Front tire: 100/80-17 M/C


Rear tire: 140/70-17 M/C

Total length: 1,955mm


Total width: 680mm


Total height: 1,065mm


Seat height: 825mm


Distance between axis: 1,355mm


Minimum ground clearance: 155mm


Weight (including full oil tank and fuel tank): 144kg


Fuel tank capacity: 11.5l


Oil tank capacity: 1.15l