Two-Stroke evolution.
Featuring lightweight race-bred engine internals and benefitting from Yamaha’s famous torque-boosting YPVS (Yamaha Power Valve System), the YZ125 develops hard-hitting power that keeps you way out front. The high-efficiency air intake ensures optimum performance and instant throttle response – and the slick shifting close-ratio 6-speed transmission helps you to shave precious seconds off your lap times.
Its sharp looking ultra slim bodywork gives you a high degree of controllability on the ground and in the air – and the flat seat and race-developed ergonomics allow you to move easily around the bike when braking and accelerating hard. The YZ125 is in it to win it – now just add your ability and prepare to enter the victorYZone!
Features
Most powerful YZ125 engine
The high-tech 125cc 2-stroke engine is the most powerful unit ever used on the YZ125. Equipped with Yamaha’s famous YPVS that gives instant response and excellent useability across the rpm range – and featuring lightweight race-bred internals – it’s destined to take you to the victorYZone!
Ultra-slim bodywork
The latest generation bodywork is ultra-slim, with the area between the rider’s knees the narrowest it’s ever been on a YZ125 – and this athletic and modern design underlines the bike’s lightness and compactness. These slim dimensions give a high level of rider mobility and reinforce this lightweight racer’s feeling of agility.
Keihin Powerjet carburettor
The YZ125 is equipped with a Keihin PWK 38,1mm carburettor featuring a solenoid controlled powerjet for even more explosive performance – giving a real advantage out of the gate and when accelerating hard out of corners. A TPS (Throttle Position Sensor) and 3D map controlled CDI ensure optimized ignition timing, while the V-Force reed valve assembly ensures optimum intake efficiency at all engine speeds.
Smooth shifting 6-speed transmission
Every second counts, and for reduced lap times the YZ125 runs with a super-smooth shifting 6-speed transmission that enables you to accelerate efficiently and stay out in front. Transmission ratios have been carefully chosen by Yamaha’s engineers to maximize race performance and power output in all conditions.
High efficiency air intake
The complete intake system has been developed to provide the smoothest possible flow of air into the 38.1mm carburettor for a high level of engine efficiency. Components including the seat base, rear frame and sidepanels are all designed to reduce air resistance for stronger and more useable power output.
Race developed ergonomics
Engine performance is just one element of being competitive – the ability to handle the power effectively and take total control of the chassis is also vital. A flat seat with a low front combined with a slim tank and narrow radiator shrouds make it easy to shift your weight around the bike for increased controllability when braking, accelerating and cornering.
Best-in-class KYB suspension
Yamaha’s SSS (Speed Sensitive System) KYB front forks are widely regarded as being amongst the best designs available on a production motocross bike. With idealized low speed damping settings on both the front and rear suspension systems, the YZ125 delivers class-leading handling and excellent traction.
Powerful braking system
The brakes on the YZ125 have been developed to handle the engine’s high performance. The 270mm diameter front disc and 240mm diameter rear disc are equipped with big-piston calipers that produce effective and controllable stopping power.
Single bolt seat fixing
A single bolt seat fixing gives quick and easy maintenance, and the design of the aluminium rear frame also contributes towards intake efficiency by enabling a smooth flow of fresh air into the airbox.
In-mould graphics and factory style rims
Sporting the eye-catching ‘Icon Blue’ Yamaha Racing colours and graphics, the YZ125 looks the part with its dynamic look completed with in-mould graphics and slimeline bodywork, with factory-style rims completing the race-bike look.
Engine type | Liquid-cooled, 2-stroke, Forward-inclined single cylinder, Reed valve with YPVS |
Displacement | 125cc |
Bore x stroke | 54,0 mm x 54,5 mm |
Compression ratio | 8,2-10,1 : 1 |
Lubrication system | Premix |
Clutch type | Wet, Multiple Disc |
Ignition system | CDI |
Starter system | Kick |
Transmission system | Constant Mesh, 6-speed |
Final transmission | Chain |
Fuel system | Keihin PWK38S/1 |
Frame | Semi double cradle |
Caster angle | 26º |
Trail | 109 mm |
Front suspension system | Upside-down telescopic fork |
Rear suspension system | Swingarm, (link suspension) |
Front travel | 300 mm |
Rear travel | 315 mm |
Front brake | Hydraulic single disc, Ø270 mm |
Rear brake | Hydraulic single disc, Ø240 mm |
Front tyre | 80/100-21 51M |
Rear tyre | 100/90-19 57M |
Overall length | 2.135 mm |
Overall width | 825 mm |
Overall height | 1.295 mm |
Seat height | 975 mm |
Wheel base | 1.440 mm |
Minimum ground clearance | 365 mm |
Wet weight (including full oil and fuel tank) | 95 kg |
Fuel tank capacity | 7,0 L |
Oil tank capacity | 0,7 L |
In order to reserve this Yamaha YZ, you can place a fully refundable deposit of £100. Simply click on the the button below to proceed via a secure, one time and fully refundable payment of £100.
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FCA Number: 660860