ALL-NEW YAMAHA MT-07
The MT story continues for 2014 as Yamaha announce the launch of the all-new MT-07, an agile roadster with exciting torque levels that reinforces Yamaha’s expanding MT line-up. Its overall style, emotional engine character and engaging qualities fit perfectly into the ‘Dark Side of Japan’ MT family.
Featuring an all-new 689cc inline 2-cylinder engine producing strong torque, and equipped with a light and compact backbone-type tubular frame, the MT-07 is a sporty motorcycle that is clearly aimed at inspiring many riders throughout Europe by bringing fun, passion and excitement back to motorcycling at an affordable level.
Yamaha’s new MT-07 is one motorcycle that cannot be defined or classified by its specification figures alone. For the record, the figures for this new model that everybody wants to look at straightaway are 74.8PS, 68Nm@6,500 RPM, and 179kg wet weight (Dry weight 164kg).
But in reality, these figures only tell a very small part of the MT story, because the MT-07 has not been designed only to be the fastest, most powerful, quickest or most sophisticated. Simply put, this new motorcycle has been created to offer the mid-class category a new kind of riding excitement that is generated by the MT-07’s exciting torque output, and its chassis design’s ability to accentuate the passion that first attracted each one of us to motorcycling.
The MT-07 is designed to bring a new passion to the mid-class segment. With its high levels of excitement and easy handling nature, this is an incredible package offering exceptional value for money, making it an attractive proposition from many different points of view.
The new Yamaha MT-07 is aimed at anyone who is looking for an alternative approach to biking. Newer riders who are entering the two-wheeled world and are looking for a different kind of sports bike will discover that the MT-07 looks good, feels good and is easy to use and fun to ride.
Yamaha also believe that those more experienced bikers who are looking for fun will also find that the MT-07 is a machine that’s built to exceed their expectations.
ENGINE
New 689cc in-line 2 cylinder engine
When designing the basic architecture of the new engine, our engineers’ aim was to build a responsive and exciting powerplant that would accentuate the emotions experienced by the rider in a variety of situations. This machine is all about highlighting and focusing the pure enjoyment that comes with everyday riding.
So rather than simply focusing on achieving maximum power and maximum torque figures, we set out to create an engine which would deliver strong emotion while being very easy and intuitive to ride.
The crucial ingredient that makes the new inline 2-cylinder MT-07 engine stand out is the fact that it has been developed using Yamaha “Crossplane philosophy”. This is an engineering concept that seeks to enhance power output characteristics, thus providing more predictable and instantaneous engine response, making this compact and lightweight sports bike more accessible and more enjoyable for a wider range of riders.
Powerful and compact inline 2 cylinder with a wide usable powerband
The all-new 689cc liquid-cooled 4-stroke inline 2-cylinder DOHC engine features a 270-degree crank layout and includes an exceptionally compact single-axis balancer. The engine has been designed to deliver a power output of 55kw/75 PS, while being very compact and lightweight at the same time. So in terms of performance and specifications the engine positions itself at the top of its class.
On the other hand, with its focus on low and mid rpm torque, its offers a very wide range of usability from exciting sports riding through to casual cruising and efficient commuting.
“Crossplane philosophy” for enhanced torque output characteristics
The MT-07’s new inline 2-cylinder engine has been designed to deliver class leading performance while also having a strong focus on delivering exceptional but easy to control torque output in the low and mid rpm range.
The target of ‘easy to control torque’ is mainly achieved by implementing the Yamaha “Crossplane Philosophy” layout. It is all about the best harmonization of the engine’s internal forces – the combustion torque (created by the igniting fuel) and the inertial torque (created by the rotating crank and the up and down movement of the pistons). Once these two torque forces are aligned well (called ‘clean torque’), the rider gets a more clear feedback on the power delivery and therefore can control the power output and the rear wheel traction in a more precise and intuitive way.
For inline 2-cylinder engines the most efficient layout to achieve ‘clean torque’ is to use a 270-degree crank with uneven firing intervals. While the 270-degree crank layout has proven its great rideability already in the TDM900 and the XT1200Z 2-cylinder engines, the MT-07 twin adds a lot of excitement by combining its easy to control power delivery with great riding dynamics – such as its class leading power output and low weight – and a great twin cylinder engine character including ‘good vibes’ and a unique deep sound.
Lightweight single-axis balancer
Yamaha’s design team have gone to great lengths towards minimizing the MT-07’s overall weight by significantly reducing the weight of every component. For example, the compact single-axis balancer is one of the lightest of its kind in the market. By reducing the distance between the crank and balancer axis, this new design helps to keep engine dimensions low. Together with the use of rubber engine mounts, the single-axis balancer reduces vibrations for a more enjoyable experience.
Offset cylinder design for increased fuel efficiency
At the press launch of the MT-09 in September, many participants commented on the impressive fuel economy of this flagship MT model. Increasing overall engine efficiency is crucially important for environmental, economic and practical reasons, and Yamaha’s designers have been successful in achieving outstanding levels of fuel efficiency with the new MT-07.
One of the key factors in being able to attain good fuel economy is the reduction in frictional loss within the engine. Compared to a conventional design in which the con rod is slanted when combustion occurs, the offset cylinder design reduces frictional losses between the piston and cylinder, and transmits power more efficiently.
Harmonized transmission and engine design
Strong and impressive torque is a key feature on all MT models, and the MT-07 has been designed in such a way that riders can accelerate and decelerate with minimal gear changing, especially in the middle to high gears (4th to 6th). Eliminating the need for frequent gear changes makes for a more enjoyable, rewarding and relaxing ride, and it may come as something of a pleasant surprise for riders of mid-capacity inline 4-cylinder motorcycles.
In order to optimize the potential of the MT-07’s linear torque, features such as the 6-speed transmission’s gear ratios, as well as the fuel injection settings and the mass of the crank have been developed in harmony to create an exciting engine which is very easy to control.
Efficient fuel injection system
A new fuel injection system with a compact fuel pump design makes a significant contribution towards shaping the overall character and rideability of the MT-07. As well as delivering strong all-round performance, this highly efficient design also gives high fuel efficiency for reduced running costs.
Other significant features that contribute towards increased fuel efficiency include lightweight forged pistons and lens shaped combustion chambers, as well as the offset cylinder design.
Lightweight and compact 2-into1 exhaust
The MT-07’s one-piece exhaust system takes its cue from the design seen on the MT-09, and features a stubby muffler fed by gracefully curving offset pipes that merge with the short upswept muffler beneath the engine. The sculpted pipes give a feeling of dynamism from every angle, and the compact muffler features a 3-way honeycomb catalyser. The system also features an oxygen feedback control that achieves environmental standards and exceeds EU3 requirements.
The compact exhaust system is true to the MT-series theme of mass centralization which enhances the light and neutral handling character.
Ideal for A2 licence riders
The MT-07 is the perfect starting point for European riders with an A2 licence, and a 35kW version will be available at Yamaha dealers across Europe.
Engine Technical Highlights
- All-new liquid-cooled 689cc in-line 2-cylinder DOHC 4-stroke
- Lightweight and compact engine
- 74.8PS, 68Nm@6,500 RPM
- Exciting torque at low & mid rpm range
- 270-degree crank
- “Crossplane philosophy” based on 270-degree crank
- Also available in 35kW A2 licence version
- Outstanding fuel efficiency
- Newly designed 6-speed transmission
- 4-valve design with forged pistons and direct plated cylinders
- Offset cylinder design for increased fuel efficiency
- Designed to deliver optimum riding enjoyment
- Compact clutch design
- Highly efficient and compact fuel injection system
- Lightweight single axis balancer
- Lightweight and compact 2-into1 exhaust
- 3-way catalyser with oxygen feedback control
CHASSIS
Light and slim backbone-type frame
For outstanding ride quality together with easy manoeuvrability and remarkable agility, the new MT-07 runs with a light and slim steel backbone-type chassis which utilizes the new engine as a stressed member.
The new frame is constructed using high tensile steel tubing, and in order to achieve a precise balance of rigidity, the tubing has different wall thicknesses and different tensile strengths in strategically located positions. The frame’s relatively simple design together with the use of thinner tubes also contributes towards the frame’s low weight.
This new lightweight tubular chassis perfectly complements the smooth and torque-rich character of the new engine, and gives light and agile handling together with confidence-inspiring controllability.
Optimum dimensions for easy controllability and riding excitement
‘Character’ is a key theme running throughout the new MT-07, and a great deal of development work has been put into achieving a chassis that delivers high levels of riding excitement.
Close attention has been paid to a wide variety of chassis features including wheelbase, weight distribution, trail, and suspension characteristics, and as a result the MT-07 rider can expect a uniquely rewarding, involving and fulfilling riding experience that brings out the very essence of motorcycling. For example, at only 530mm long, the relatively short swinging arm on the MT-07 is responsible for giving the rider a very enjoyable feeling of the engine’s driving force and acceleration.
Asymmetrical swinging arm with link-type Monocross rear suspension
One of the focal points of the new MT-07 is an asymmetrical swinging arm, whose stylish design emphasizes the uncompromising looks of this naked all-rounder, and underlines its class-leading specification.
The swinging arm operates a link-type Monocross suspension system which features a horizontally mounted adjustable, preload shock absorber that is mounted directly to the engine’s crankcase. As well as being a compact design, this layout contributes to achieving a desirable balance of rigidity in the frame.
41mm front forks
In keeping with the easy-handling nature of the chassis, the MT-07 runs with telescopic front forks that deliver sporty suspension characteristics, and are designed to handle difficult road conditions such as cobbles and uneven surfaces.
The forks are equipped with 41mm tubes and give a total of 130mm wheel movement for comfortable suspension performance together with neutral and natural feeling steering. These forks have a relatively narrow pitch of 190mm, and this feature gives an optimum balance to the steering feeling.
17-inch 10-spoke cast aluminium wheels/180 rear tyre
The high specification wheels underline the cutting edge design of the MT-07, and are the same as those used on the MT-09. The sophisticated and lightweight 10-spoke design is the most advanced in the mid-class, and as well as being the best looking in the category, these cast aluminium wheels reduce unsprung weight to give responsive front and rear suspension action.
The wide 180/55-ZR17 radial rear tyre is unique in the mid-class, and reinforces the machine’s strong and powerful image – while also delivering plenty of traction as well as class-leading agility. At the front end there is a 120/70-ZR17 that gives high levels of grip together with confident cornering performance.
Sculpted body design with multi-reflector headlight and LED tail light
This all-new 2-cylinder MT has a character all of its own that is sure to stand out in any crowd.
The sculpted body design gives this naked roadster a slim and athletic appearance, while the seat gives a compact riding position and yet offers the possibility of adopting a range of riding positions to suit different situations, from urban through to highway use. A significant feature on the new MT-07 is its low and slim seat, which as just 805 high gives good ground access.
The slimline fuel tank allows the rider to grip it with their knees, and a tank pad accentuates the compact and sporty looks of the bike. Lightweight tank-mounted scoops enhance the bike’s sporty image, and an aluminium side cover on the chassis adds to the MT-07’s overall image of strength and durability.
The multi-reflector headlight and LED tail light emphasize the ultra-modern design of this competitively priced machine, and add to its impressive specification.
Floating front discs / front and rear wave discs
The new MT-07 is designed to continue with the policy of offering a high overall specification at the right price, and features such as the dual 282mm floating front discs and high end monocoque 4-piston front calipers clearly demonstrate that this new all-rounder offers vibrant design combined a class-leading specification. Wave type discs are used at both the front and rear, and this state-of-the-art braking system gives powerful and controllable stopping performance.
Handlebar-mounted digital instruments
MT-07 riders will be able to see clearly displayed information at a glance, thanks to the compact new digital instrument panel. In addition to the speedometer and tachometer, the full LED display includes a gear position indicator and fuel gauge. The instruments are mounted directly on top of the handlebars, and this location gives a clear and uncluttered view ahead for the rider.
Characteristic MT-family design features
MT bikes are known for their unique look and special engine and riding character. With its own unique appearance, distinctive feel and strong character, this agile new kind of naked bike fits perfectly into the growing MT line up. In particular the mass-forward body and upright riding position accentuate its strong MT family image, as does the ‘Z-shape’ formed by the air inlet-type scoops and the short exhaust downpipes – confirming its strong MT heritage.
Chassis Technical Highlights
- 179kg wet weight (164kg dry weight)
- Slim frame with 805mm seat height
- Slim and compact chassis dimensions for easy agility andmanoeuvrability
- Compact and upright riding style with freedom to adopt differentpositions
- Class-leading 180 wide rear tyre
- Wave discs front and rear
- Newly designed backbone-type lightweight tubular frame
- Chassis geometry, weight distribution and dimensions designed foroptimal riding excitement and controllability
- Best in class, high end asymmetrical swinging arm
- Link-type Monocross rear suspension with horizontal adjustableshock mounted directly to the crankcase
- 41mm front forks with 130mm of stroke and narrow 190mm pitch
- 17-inch radial tyres and best in class lightweight 10-spoke castaluminium wheels
- Dual 282mm wave front discs with monocoque 4-pot opposedpiston calipers
- Characteristic MT-series style Z-shape exhaust/air inlet-type scoops
- Handlebar-mounted digital instruments with full LED display
- Sculpted body design with slim fuel tank for easy knee grip
- Multi-reflector headlight with LED tail light
Images from: http://www.yamaha-motor.eu/eu/products/motorcycles/mt/mt-07.aspx?view=explore
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