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CONCEPT
YZF-R1 - State-of-the art race technology
Yamaha R1 represents a paradigm shift in technology, performance and controllability among litre class sport bikes. The R1 has been designed to be the “Ultimate Cornering Master 1000” of the open super sport class. Inspired by Yamaha’s M1 MotoGP race bike, this latest generation 998cc R1 features a crossplane crankshaft design with an uneven firing order to provide outstanding yet easy to control torque and an exceptionally linear throttle feel never experienced before. But there is far more to R1 than just a revolutionary engine.
Crossplane crankshaft technology proven in victory after victory on MotoGP® machines provides a high-tech uneven firing interval. Unlike typical inline-four engine design, where the two outer and two inner pistons move together in pairs with 180° intervals, the crossplane crankshaft has each connecting rod 90° with a unique firing order of 270° – 180° – 90° – 180°. This overcomes the inherent fluctuations in inertial torque during each engine revolution, and the accompanying peaky torque characteristics. Instead, combustion torque continues to build, giving the rider more linear throttle response with awesome power and traction out of the corners.
This R1 keeps all the technological superiorities developed for its predecessor: YCC-T™ (Yamaha Chip Controlled Throttle) is MotoGP® inspired fly-by-wire technology used to deliver instant throttle response. YCC-I® is Yamaha Chip Controlled Intake which is a variable intake system that broadens the spread of power. The fuel injection system provides optimum air/fuel mixtures for maximum power and smooth throttle response.
The R1 features Yamaha D-MODE (or drive mode) with rider-selectable throttle control maps to program YCC-T performance characteristics for riding conditions.
Yamaha believes that developing motorcycles is both a technological and an artistic endeavor. It pursues a level of performance that transcends mere specifications. The goal is to produce technologically superior motorcycles that should have a deep and intangible emotional appeal. It is what defines the company and this is what we call the “Art of Engineering".
| Engine type | Liquid cooled 4-stroke DOHC |
|---|---|
| Displacement | 998 cm3 |
| Bore & Stroke | 78.0 x 52.2 mm |
| Compression ratio | 12.7:1 |
| Maximum horse power | 132.4kW (12500r/min) |
| Maximum torque | 112.7N･m(10000r/min) |
| Starting system | Electric starter |
| Lubrication | wet sump |
| Clutch type | Wet multiple-disc coil spring |
| Ignition system | T.C.I |
| Primary reduction ratio | 65/43 1.512 |
| Secondary reduction system | Chain drive |
| Secondary reduction ratio | 45/17 2.647 |
| Transmission type | Constant mesh, 6-speed |
| Final transmission | Chain |
| Maximum Speed (crouched) | 285km/h |
| Minimum turning radius | 3500 mm |
| Cylinder arrangement | Forward-inclined parallel 4-cylinder |
| Radiator capacity(including all routes) | 2.773 L |
| Air filter type | Paper |
| Spark plug model | CR9EK |
| Battery voltage/capacity | 12V, 8.6AH(10H) |
| Gear ratio-1st gear | 38/15 2.533 |
| Gear ratio-2nd gear | 33/16 2.063 |
| Gear ratio-3rd gear | 37/21 1.762 |
| Gear ratio-4th gear | 35/23 1.522 |
| Gear ratio-5th gear | 30/22 1.364 |
| Gear ratio-6th gear | 33/26 1.269 |
| Headlight bulb type | Halogen bulb |
| Headlight | 3312V, 55W ×2 |
| Auxiliary light | 12V, W5W ×2 |
| Brake/tail light | LED |
| Turn signal light(Front) | 12V, 10.0 W ×2 |
| Turn signal light(Rear) | 12V, 10.0 W ×2 |
| Speedometer | LCD Digital |
| Tachometer | Analog |
| Odometer | LCD Digital |
| Trip meter | LCD Digital |
| Water temperature meter | LCD Digital |
| Clock | LCD Digital |
| Shock absorber assembly type(Front) | Coil spring/oil damper |
| Shock absorber assembly type(Rear) | Coil spring/gas-oil damper |
| Frame type | Diamond |
|---|---|
| Front suspension | Telescopic fork |
| Front wheel travel | 120 mm |
| Rear suspension | Swingarm |
| Rear wheel travel | 130 mm |
| Front brake | 310 mm |
| Rear brake | 220 mm |
| Front tyre | 120/70ZR17MC(58W) |
| Rear tyre | 190/55ZR17MC(75W) |
| Overall length x width x height | 2,070mm x 715mm x 1,130mm |
|---|---|
| Seat height | 835mm |
| Wheelbase | 1,415mm |
| Minimum ground clearance | 135mm |
| Dry weight (with oil and fuel) | 206 kg |
| Fuel tank capacity | 18 litres |
| Oil capacity | 3.93 litres |
The newly designed instrumentation includes everything a rider wants to know, including gear postion.
The new R1 has only two projector-type bulbs mounted closer to the nose of the bike. This positions ram air duct closer in for a more compact, smooth look. The innovative new projector headlight design features a solenoid coil type high/low beam mechanism. First time this system has been used on a production bike.
Suspension inludes first SOQI front forks which use one of the tricks developed for our winning MotoGP bikes: independent damping. The left fork handles compression damping and the right side handles rebound damping. And the rear shock adopts new linkage for optimum suspension characteristics.
The R1 feattures Yamaha D mode control maps to program YCC-T performance characteristics for riding conditions. The standard map is designed for optimum overall performance. The "A" mode provides sportier engine response, the "B" mode offers less sharp response for riding situations that require especially sensative throttle operation.
(Yamaha Chip Controlled Intake) is a variable intake system that broadens the spread of power. The fuel injection system provides optimum air/fuel mixtures for maximum power and smooth throttle response.
(Yamaha Chip Controlled Throttle) is a MotoGP inspired technology used to deliver instant electronic throttle response.
This engine features new forged aluminium pistons to make maximum advantage of the power charateristics. As proven on previous models, intake valves are lightweight titanium.
The YZF-R1 is equipped with fracture-split(FS) carburized con rods. The two halves of fracture-split big end rings are re-assembled along the same fracture lines, and this makes for a stronger and more perfectly round big end, giving outstanding performance and reliability.
The Crossplane crankshaft produces an uneven firing interval of 270°-180°-90°-180°. This eliminates undesirable inertial crankshaft torque, which allows the engine's combustion torque to build smoothly and provide a very linear power delivery out of the corners.
Slipper-type back torque-limiting clutch greatly facilitates braking/downshifting from high speed.
In keeping with this machine's exceptional cornering ability and crisp handling, the all new aluminium frame has been designed to offer exceptional rigidity balance.
Adjustable footrests, with a 15mm height up/down adjustment
The rear frame is now lightweight CF diecast magnesium, contributing the optimum mass centralization.
Posted in: YAMAHA
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