Thursday, January 15, 2009

YAMAHA YZF-R1


In the supersport liter class, there’s always lots of talk about power. You expect that. What you wouldn’t have expected – until now – is a radically superior way to deliver that power. Introducing the 2009 YZF-R1, the first ever production motorcycle with a crossplane crankshaft. Crossplane technology, first pioneered in MotoGP racing with the M1, puts each connecting rod 90° from the next, with an uneven firing interval of 270°- 180°- 90°- 180°. This all but eliminates undesirable inertial crankshaft torque, which allows the engine’s compression torque to build smoothly and provide a very linear power delivery out of the corners. It’s a feeling that’s simply unmatched, like having two engines in one: the low-rpm torquey feel of a twin with the raw, high-rpm power of an inline 4. In fact, the new YZF-R1 is not a continuation of existing supersport development; it is breakthrough technology that represents a paradigm shift in both technology and performance.

1 comment:

  1. SPECIFICATION :

    Engine
    Type 998cc, liquid-cooled 4-stroke DOHC 16 valves (titanium valves)
    Bore x Stroke 78.0mm X 52.2mm
    Compression Ratio 12.7:1
    Fuel Delivery Fuel Injection with YCC-T and YCC-I
    Ignition TCI: Transistor Controlled Ignition
    Transmission 6-speed w/multi-plate slipper clutch
    Final Drive #530 O-ring chain

    Chassis
    Suspension/Front 43mm inverted fork; fully adjustable, 4.7-in travel
    Suspension/Rear Single shock w/piggyback reservoir; 2-way adjustable, 4.7-in travel
    Brakes/Front Dual 310mm disc; radial-mount forged 6-piston calipers
    Brakes/Rear 220mm disc; single-piston caliper
    Tires/Front 120/70ZR17M/C 58W
    Tires/Rear 190/55ZR17M/C 75W

    Dimensions
    Length 81.1 in
    Width 28.1 in
    Height 44.5 in
    Seat Height 32.8 in
    Wheelbase 55.7 in
    Rake (Caster Angle) 24.0°
    Trail 4.0 in
    Fuel Capacity 4.8 gal
    Fuel Economy** 33 mpg
    Wet Weight 454 lb
    Primary Reduction Ratio 65/43 (1.512)
    Secondary Reduction Ratio 47/17 (2.765)
    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)

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