The new 2022 YZ125 represents an important evolution in Yamaha’s two-stroke lineage. As the first full model change to the iconic model in more than 15 years, Yamaha engineers put considerable thought into developing a motorcycle that would be both dominant on the racetrack and user-friendly for developing riders looking to bridge the gap between recreation riding and competitive motocross.
The liquid-cooled 125cc two-stroke engine has been thoroughly reworked to produce more power. Every functional part of the 2022 YZ125 engine is new, including the cylinder body, cylinder head, piston, piston pin, connecting rod, crankcase and expansion chamber.
To match increased engine performance, an updated lightweight braking system features larger front pistons, a more rigid caliper, a redesigned 270mm front rotor with a 30% increase in pad contact area and higher friction pad material, all combining to provide exceptional braking power and feel.
The special Monster Energy Yamaha Racing Edition is fitted with premium embedded graphics to ensure outstanding durability and scratch resistance.
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YZ125SP
Ride Away Price
$
11,249.00
INC GST
Ride away price is based on the manufacturer’s recommended retail price (MRRP) for a private buyer, 12 months registration, 12 months CTP, stamp duty and recommended dealer delivery fee. For non-road registerable models, ride away price includes the MRRP and dealer delivery fee. Actual ride away price may differ depending on choice of dealer and individual circumstances. Contact your local Yamaha dealer to confirm pricing. Yamaha reserves the right to vary the ride away price at any time.
Features
Increased power and better usability
The all-new 125cc 2-stroke engine is the most powerful unit ever used on the YZ125, and it develops a higher performance in the mid to high rpm range and offers improved usability. This has been achieved by developing an all new cylinder head, piston and cylinder, con rod, crank, YPVS as well as redesigning other major components.
Athletic new ultra-slim bodywork
Bodywork is the slimmest ever, with the area between the rider’s knees 36mm narrower than on the previous model, and the athletic and modern body design underlines the YZ125 Monster Energy Yamaha Racing Edition’s lightness and
compactness. The reduced dimensions improve overall rider mobility and reinforce this lightweight racer’s feeling of agility.
High-efficiency air intake
Following extensive testing Yamaha’s
engineers have developed a new intake
system. The whole area around the airbox
has been redesigned including the seat
base, rear frame and sidepanels in order
to reduce air resistance, making a
significant contribution towards increased
intake efficiency.
Keihin Powerjet carburettor
The YZ125 Monster Energy Yamaha Racing Edition is equipped with a Keihin PWK
38.1mm carburettor featuring a solenoid
controlled Powerjet that instantly delivers
its fuel/air mix for even more explosive
performance, giving a real advantage out of
the gate and when accelerating hard out of
corners. And the new TPS (Throttle Position
Sensor) and 3D map controlled CDI ensure
optimised ignition timing, while the new VForce
reed valve assembly provides optimum
intake efficiency at all engine speeds.
Monster Energy Yamaha Racing Edition bodywork
The YZ125 Monster Energy Yamaha Racing
Edition has got to be the ultimate YZ125
ever built by Yamaha. Its exclusive factory
team graphics combined with dynamic
bodywork in Monster Black with blue
accents and blue wheels give you the
opportunity to own and race your very
own replica bike!
Smooth shifting 6-speed transmission
The transmission has been redesigned and
features a new set of internals to handle
the YZ125’s dramatically increased
maximum power output, and a redesigned
shift mechanism gives a smoother shift
feeling. The secondary reduction ratio is
slightly increased with the use of a 13/49
front/rear sprocket set, and for better
driveability the transmission runs with
slightly reduced 5th and 6th gear ratios.
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, and the new model features revised low speed damping settings on both the front and rear suspension systems for better handling characteristics.
New rear frame
Complimenting the performant aluminium semi-double cradle frame, the new rear frame on the YZ125 Monster Energy Yamaha Racing Edition is designed to enhance air flow into the carburettor, and a new style cross member facilitates the use of a new single bolt fixing for the seat – for quicker and easier maintenance. The new rear frame also accommodates a new mounting point for the 50mm shorter silencer.
Powerful braking system
The brakes on the YZ125 Monster Energy Yamaha Racing Edition have been redeveloped to handle the increased performance. The front disc diameter remains the same at 270mm, but a new more rigid twin-pot caliper is equipped with larger 25.4mm pistons and new pads with an increased contact area for more powerful braking. For the rear disc, the diameter is reduced by 5mm to 240mm while the pad area remains the same.
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 new much flatter
seat with a lower front and higher rear,
together with the new slimmer tank and
narrower radiator shrouds, make it much
easier to shift your weight around the bike
when braking, accelerating and cornering.
Technical Specification
- Engine Type Liquid-cooled, 2-stroke, reed-valve
- Displacement (cc) 125.0
- Bore x Stroke (mm) 54.0 x 54.5
- Compression Ratio 8.2 - 10.1 : 1
- Lubrication System Premix
- Fuel Management PWK38S
- Ignition CDI
- Starter System Kick
- Fuel Tank Capacity (L) 7.0
- Final Transmission Chain
- Transmission Constant mesh 6-speed
- Frame Type Aluminium controlled filled semi double cradle
- Suspension Front Telescopic forks, 300mm travel
- Suspension Rear Swingarm (link suspension), 315mm travel
- Brakes Front Hydraulic single disc, 270mm
- Brakes Rear Hydraulic single disc, 240mm
- Tyres Front 80/100-21 Bridgestone Battlecross X20F
- Tyres Rear 100/90-19 Bridgestone® Battlecross X20
- Length (mm) 2135
- Width (mm) 825
- Height (mm) 1295
- Seat Height (mm) 975
- Wheelbase (mm) 1440
- Ground Clearance (mm) 365
- Wet Weight (kg) 95