2009 Yamaha WR125X/R
 
New Enduro and Supermoto join Yamaha’s
125 line up
For the 2009 model year Yamaha introduce two exciting
and stylish new motorcycles which underline the strength
of the company’s 125 model line up. The new
WR125X Supermoto and the WR125R Enduro have been developed
using some of the same advanced technology that is
already featured on the popular WR250X and WR250R
models which were launched for the 2008 season.
These two new motorcycles have been built with full-sized
chassis designs and feature a class-leading specification
that includes a highly responsive 124.7cc liquid-cooled
4-stroke 4-valve SOHC single-cylinder engine, long-travel
41 mm diameter front forks and large-diameter disc
brakes slowed by a floating two-piston caliper at
the front and a compact one-piston caliper at the
rear.
The design of the beautifully-styled bodywork represents
Yamaha’s very latest next-generation off-road
look, which has been influenced by our larger WR models.
This radical new styling gives both models an imposing
presence on the street and dirt that few other 125s
can match.
Featuring Yamaha’s first-class build quality,
as well as close attention to detail, and equipped
to a high overall specification, the WR125X Supermoto
and WR125R Enduro offer our customers an even wider
choice of Yamaha 125cc models, and add an exciting
new dimension to this important class.
Because both of these exciting new 125cc models develop
11 kW (15 PS) maximum power, many car drivers in European
countries will be entitled to ride them using their
existing car license (B).
Model Overview - WR125X / WR125R
- WR125X – the new 125 Supermoto 4-stroke
- WR125R – the new 125 Enduro 4-stroke
- 124.7cc liquid-cooled, 4-stroke, 4-valve, SOHC,
single-cylinder engine
- Highly responsive engine performance
- Rugged and full-sized steel chassis
- Top-class suspension and braking systems
- Radical next-generation off-road styling
- High overall specification and top quality components
Engine
Both of these stylish new models are powered by
a specially-adapted version of the 124.7cc liquid-cooled
4-stroke 4-valve SOHC single-cylinder engine which
is already used in the hugely popular YZF-R125. Featuring
a bore x stroke of 52.0 x 58.6 mm and a compression
ratio of 11.2:1, this fuel-injected engine has been
designed to deliver maximum power at 9,000 rpm, with
maximum torque at 8,000 rpm, giving strong performance.
This free-revving and ultra-reliable powerplant has
already established a reputation as being one of the
most impressive performers in the 125 category, and
in order to achieve the best on and off road potential
in the new WR125X and WR125R, a number of changes
have been made to the engine.
Revised inlet and exhaust
In order to ensure superb responsiveness and a strong
power delivery, the WR125X and R feature a number
of modifications to the inlet and exhaust. These detail
changes are designed to give smooth and predictable
throttle response at low to mid speeds for improved
controllability in a variety of road and off road
riding situations. At the same time, Yamaha’s
engineers have also ensured that the strong power
feeling which has made the YZF-R125 such a success
is retained, and both the WR125X and WR125R are ready
to deliver exciting performance on the road and in
the dirt!
Slick-shifting 6-speed transmission
Both models run with a slick-shifting 6-speed transmission
equipped with a revised final drive ratio which is
designed to optimize the performance potential in
all situations, including urban, highway and off road
riding.
Low-emission EU3 engine
The 124.7cc liquid-cooled 4-stroke 4-valve SOHC
single-cylinder engine which powers the WR125X and
WR125R benefits from Yamaha’s very latest design
and technology. As well as being one of the strongest
and most responsive performers in the class, these
two new Yamaha lightweights are also two of the cleanest
running 125s in the category.
The high compression 11.2:1 combustion chamber is
fed by an advanced fuel injection system which not
only ensures crisp and instantaneous throttle response,
but also delivers remarkably efficient combustion
processes. An Air Induction System (AIS) helps to
reduce harmful emissions by introducing fresh air
directly into the exhaust for more complete burning
of gases. Together with the exhaust catalyser and
O2 sensor, this advanced 4-valve cylinder head design
ensures that the WR125X and WR125R deliver optimal
performance with minimal emissions which comply with
the latest EU3 regulations.
User-friendly character
The engine specification used on the new WR125X
and WR125R ensures that both the Supermoto and Enduro
model will deliver an equally satisfying and exciting
two-wheeled experience, on and off the road.
As well as the smooth, responsive and predictable
power delivery, the new WR125X & R are equipped
with an electric start and automatic decompressor
for easy starting – and for increased durability
when riding off road, both models feature a folding-peg
type gear change lever which is similar to the design
used on our WR enduro race bikes.
Engine– Technical Highlights
- 124.7cc liquid-cooled, 4-stroke, 4-valve, OHC,
single-cylinder engine
- Bore x stroke 52.0 mm x 58.6 mm
- Compression ratio of 11.2:1
- Maximum power 11 kW (15 PS) at 9,000 rpm
- Maximum torque 12.2 Nm at 8,000 rpm
- Specially adapted version of the successful YZF-R125
engine
- Revised inlet and exhaust for smooth and predictable
throttle response
- 6-speed transmission
- Low emission EU3-compliant engine
- Electric starter
- Folding gear change lever
- Automatic decompressor
Chassis
The first impression of the new WR125X and WR125R
is that they are both physically large machines which
are sure to stand out amongst a crowd of other 125cc
models.
Both bikes share a number of features in common with
the larger WR250X and R models, as well as with the
WR250F enduro race bike. The high overall specification
and leading build quality of the chassis, bodywork
and cycle parts seen on these new 125 4-strokes is
sure to appeal to new riders who are looking for Yamaha
technology, style and performance.
These two exciting new additions to the Yamaha range
reinforce the company’s comprehensive 125 line-up
and offer our customers the widest choice.
Full size body
With their full-sized chassis designs and next-generation
off road bodywork, the WR125X and WR125R are two of
the most stylish and exciting machines in the 125cc
category, and could easily be mistaken for larger
capacity models.
Yamaha’s designers set out to create two physically
impressive models in the WR125X and WR125R, and this
has been achieved by using a newly designed diamond-shaped
steel frame and WR-enduro race bike type tank and
seat design.
This new chassis features a seat height of 920 mm
on the WR125X, and 930 mm on the WR125R, giving these
bikes the looks, feel and riding experience usually
associated with larger capacity models.
Radical on / off road styling
Both of these exciting new 125s feature all-new
bodywork which represents a new direction in Yamaha’s
off-road styling. While featuring familiar elements
from Yamaha’s WR-F and YZ-F competition models,
the new-generation off road styling brings a radical
and exciting new look to the 125 class, and ensures
that the WR125X and WR125R will always stand out in
a crowd.
Just like our competition bikes, the tank and seat
units on the new WR125X and WR125R are designed to
allow optimal mobility so that the rider can easily
shift their weight forwards or backwards to suit the
terrain. The handlebar/seat/footrest positioning has
also been designed to allow the rider to stand up
when riding off road, for optimal control and manoeuvrability.
Serious off road potential
Both models are equipped with 41 mm diameter front
forks giving 210 mm (WR125X) and 240 mm (WR125R) of
front wheel travel to ensure high levels of comfort
on the highway, together with sure-footed handling
performance in the dirt.
At the rear end the single shock Monocross suspension
system offers a choice of seven preload settings that
can be adjusted to suit solo and two-up riding, as
well as a range of different riding conditions –
on or off road.
The chassis on both models also features plenty of
ground clearance, giving both models a rugged hardcore
look, and this high ground clearance also ensures
that the WR125R rider can fully exploit the bike’s
genuine off road capabilities.
High specification wheels and tyres
The fitment of high quality wheels and tyres to
both models underlines Yamaha’s total commitment
to making the very best chassis technology available
to today’s 125 rider.
In order to match its strong dual purpose performance
and enhance its excellent off road capabilities, the
WR125R Enduro is equipped with a 21-inch front wheel
and 18-inch rear wheel, just like our WR250F enduro
race bike. The lightweight aluminium wheels are fitted
with dual-purpose tyres which offer good performance
on the road and in the dirt, allowing the WR125R rider
to enjoy the machine to its full potential.
The WR125X Supermoto runs with 17-inch front and
rear wheels, and these are fitted with sticky sports
tyres that deliver high levels of traction. To complement
the bike’s full sized chassis a massive 140-section
rear tyre is fitted, giving the WR125X serious big
bike looks and outstanding cornering potential.
Large diameter front disc brake with floating
two-piston caliper
Both models run with high quality braking systems
which are designed to offer ample stopping power together
with plenty of accurate feedback for optimal controllability
on and off road.
The WR125X Supermoto is equipped with a 298 mm diameter
front disc which is slowed by a floating 2-pot caliper,
while stopping power at the rear is generated by a
compact single-pot caliper gripping a 220 mm diameter
disc. To suit its greater off road bias, the WR125R
Enduro features a 240 mm wavy front disc slowed by
a floating 2-pot caliper, and 220 mm wavy rear disc
slowed by a single-pot caliper.
Newly-designed LCD instrument panel
Another feature which graphically underlines the
high overall specification and first class build quality
of the new WR125X & R is the stylish instrument
panel. Featuring an easy-to-read LCD speedometer,
this newly-designed panel includes a fuel gauge, distance
meter and two tripmeters.
Folding-peg type gear change lever
Our designer team’s close attention to detail
is also evident in the use of a folding-peg type gear
change lever which is standard fitment on all Yamaha’s
off road racing bikes. In the event of a small fall,
or a close brush with an obstacle when riding off
road, the tip of the gear change lever folds back
to prevent damage to the main lever or shaft.
Factory-racer type footpegs
The footpegs are another of the components fitted
to the WR125X and WR125R that have been developed
from our off road race bikes. The lightweight design
offers plenty of support and grip for the sole of
the boot which is particularly important when riding
off road.
Frame protectors
Lightweight frame protectors help to prevent scuff
marks caused by the rider’s boot where it rubs
on the chassis, and allows the WR125X and WR125R owners
to keep their machine in first class condition.
Chassis– Technical Highlights
- Newly-designed full-sized chassis and bodywork
- Ergonomic tank/seat design allows optimal rider
movement
- Radical next-generation off-road styling
- High ground clearance
- High quality components and class-leading build
quality
- 41 mm diameter long-travel front forks
- Preload-adjustable Monocross rear suspension
- Comprehensive, high-specification LCD instrument
panel
- Dual trip meters
- Factory-racer type footpegs
- Frame protectors
- 2-pot front brake caliper / single-pot rear caliper
WR125X Specific Features:
- 17-inch front wheel, 17-inch rear wheel with
sports tyres
- Large-diameter 298 mm front disc / 220 mm rear
disc
- Massive 140-section rear tyre
- 920 mm seat height
WR125R Specific Features:
- 21-inch front wheel, 18-inch rear wheel with
dual-purpose tyres
- 240 mm front wavy disc and 220 mm rear wavy disc
- 930 mm seat height
- Serious off road capabilities
Available colours:
- Racing Blue Racing Blue
- Sports White Yamaha Black
Technical Specification
Engine
- Type - Liquid-cooled, 4-stroke, forward-inclined
single cylinder, 4-valves, SOHC
- Displacement - 124.7 cc
- Bore x stroke - 52.0 x 58.6 mm
- Compression ratio - 11.2:1
- Max. Power - 11 kW (15 PS) @ 9,000 rpm
- Max. Torque - 12.2 Nm (1.24 kg-m) @ 8,000 rpm
- Lubrication system - Wet sump
- Fuel supply system - Fuel Injection
- Clutch type - Wet, multiple-disk coil spring
- Ignition system - TCI (digital)
- Starter system - Electric
- Transmission system - Constant mesh, 6-speed
- Final transmission system - Chain
- Primary reduction ratio - 73/24 (3.042)
- Secundary reduction ratio - 53/14 (3.786)
- Gear ratio; 1st gear - 34/12 (2.833)
- Gear ratio; 2nd gear - 30/16 (1.875)
- Gear ratio; 3rd gear - 30/22 (1.364)
- Gear ratio; 4th gear - 24/21 (1.143)
- Gear ratio; 5th gear - 22/23 (0.957)
- Gear ratio; 6th gear - 21/25 (0.840)
Chassis
- Frame - Steel double cradle
- Front suspension - Telescopic forks
- Front wheel travel - 210 mm
- Rear suspension - Swingarm (link suspension)
- Rear wheel travel - 230 mm
- Caster angle - 25.5º
- Trail - 78.5 mm
- Front brake - Single disc, Ø 298 mm
- Rear brake - Single disc, Ø 220 mm
- Front tyre - 110/70-17 M/C 54H (TUBELESS)
- Rear tyre - 140/70-17 M/C 66H (TUBELESS)
Dimensions
- Overall length - 2,095 mm
- Overall width - 835 mm
- Overall height - 1,165 mm
- Seat height - 920 mm
- Wheelbase - 1,430 mm
- Min. ground clearance - 255 mm
- Wet weight (including full oil and fuel tank)
- 137 kg
- Fuel capacity - 8.5 litres
- Oil capacity - 1.15 litres
Specification are subject to change without notice,
in accordance with national regulation and legislations
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