Yamaha YZF-R125 2011 Model
The R-series starts here.
With its R-series styling, sporty performance and handling, the YZF-R125 is the perfect introduction to supersport riding. Its liquid-cooled, 4-stroke, 4-valve, single cylinder, SOHC engine is tuned to deliver free-revving performance.
And, like all R-series bikes, it features a lightweight Deltabox frame. Linked to a cast aluminium swinging-arm, this gives the R125 class-leading handling.
Lightweight 5-spoke wheels help to minimise unsprung weight and deliver impressive roadholding, while effective stopping power comes from a large diameter 292mm front disc and 230mm diameter rear disc.
At Yamaha we believe you get out what you put in. With over half a century of motorcycle innovation, that means some pretty special machines. The 125cc range embodies freedom, fun and fulfilment – each model is built with the passion that comes from decades of competing and winning at the highest level.
Forging new technology and bringing it to the road is what Yamaha is all about. Our 125s don’t just look the business, they do the business – covering every need, from simple economy to custom luxury.
The YZF-R125 also has real racing pedigree, featuring the agressive styling of the R6 and R1 as well as a MotoGP inspired mid-ship exhaust.
Liquid-cooled, 4-stroke, single-cylinder, 125cc engine
The YZF-R125’s advanced engine combines a 4-valve cylinder head and fuel-injection for the best possible performance. The short stroke layout gives the engine a free-revving character, which when driven by the 6-speed gearbox, delivers lively acceleration.
R-series style bodywork
With R-series style front cowling and twin fox-eye headlights, the YZF-R125 has the same aggressive supersport styling as the R1 and R6. Unlike many 125cc bikes, the R125 is built on a full-sized chassis providing a more comfortable riding position – especially for taller riders.
Large diameter disc brakes
Yamaha is committed to using high-specification components – like the large diameter 292mm front disc brake units on the YZF-R125. The compact twin-pot caliper design on the front-brake combined with the 230mm rear disc ensures smooth, controlled braking at a range of speeds and assured stopping power when you need it.
Sporty mid-ship muffler
The mid-ship exhaust muffler contributes to centralise the bike’s mass for balanced handling and houses dual catalysers for cleaner emissions. In addition, an Air Induction System introduces air into the exhaust for more complete combustion of exhaust gases, lowering emissions even further.
Instrument panel
The combined digital and analogue panel speedometer provides a clear view of all the bike’s vital functions at a glance.
Aluminium swinging arm
The R125 features a lightweight Deltabox frame which delivers an optimum balance of strength and rigidity for class-leading handling performance. Complementing the frame is a lightweight cast aluminium swinging arm that allows the link-type rear suspension system to operate more efficiently and deliver more responsive handling qualities.
YZF-R125
Engine
Engine type Single cylinder, liquid-cooled, 4-stroke, SOHC, 4-valves
Displacement 124.7cc
Bore x stroke 52.0 mm x 58.6 mm
Compression ratio 11.2 : 1
Maximum power 11.0 kW (15.0PS) @ 9,000 rpm
Maximum torque 12.24 Nm (1.25 kg-m) @ 8,000 rpm
Lubrication system Wet sump
Carburettor Electronic Fuel Injection
Clutch type Wet, multiple-disc coil spring
Ignition system TCI (digital)
Starter system Electric
Transmission system Constant Mesh, 6-speed
Final transmission Chain
Chassis
Frame Steel Deltabox
Front suspension system Telescopic forks
Front travel 130 mm
Caster angle 24.2º
Trail 86.1 mm
Rear suspension system Linked monoshock with spring preload adjustment
Rear travel 125 mm
Front brake Hydraulic single disc, Ø 292 mm
Rear brake Hydraulic single disc, Ø 230 mm
Front tyre 100/80-17 M/C
Rear tyre 130/70-17 M/C
Dimensions
Overall length 2,015 mm
Overall width 660 mm
Overall height 970 mm
Seat height 818 mm
Wheel base 1,355 mm
Minimum ground clearance 155 mm
Wet weight (including full oil and fuel tank) 138 kg
Fuel tank capacity 13.8 litres
Oil tank capacity 1.15 litres
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