Engine

• Compact, ultra-lightweight 998cc, DOHC, 20-valve, liquid-cooled, in-line four-cylinder engine produces significant low- and mid-range torque and top-end power!
• Competition-bred suction-piston fuel injection, with 40mm throttle bodies, features short intake ports and a special vacuum-controlled intake system to ensure optimum low-rpm air volume and thus smooth, strong, linear power across the rpm range.
• The fuel injection's lightweight Electronic Control Unit (ECU) adjusts injection period and timing via intake air temperature/pressure, atmospheric pressure, coolant temperature, crankshaft position, and rpm and throttle position sensors.
• Forward-facing airbox routes cooler, fresher air toward the engine as speeds increase, delivering greater high-rpm output.
• Specially designed, one-piece cylinder and crankcase assembly provides tremendous engine rigidity that's lighter and stiffer than two-piece designs.
• Higher silicon-content cylinder sleeves ensure greater heat dissipation (and reduced oil consumption) for consistent power delivery and reduced frictional power loss.
• Lightweight forged pistons feature carburized connecting rods with strong fastening bolts for great high-rpm durability.
• 4-into-2-into-1 exhaust with titanium muffler features titanium header pipes for enhanced low- to mid-range torque and top-end power.
• High-efficiency radiator and ring-style cooling fan produces more airflow than conventional designs.
• Yamaha's patented Exhaust Ultimate Power (EXUP) valve, designed with two shafts and dual butterfly valves to be small and light in weight, adjusts exhaust flow for maximum torque.
• Special 3-axis gearbox design stacks input/output shafts to create a low center of gravity and keep overall engine size to 600cc-spec dimensions.
• Close-ratio 6-speed transmission delivers seamless power transfer between gears for maximum acceleration.
• Compact, large-capacity clutch ensures consistent, positive engagement.
• Competition spec gear shift lever and linkage rod combine with specially treated, smooth-surfaced shift cam for slick shifting.
• Large oil cooler provides high performance, while sightglass ensures easy oil level inspection.
• Direct ignition coils, iridium spark plugs and high-output magneto deliver reliable firing.

Chassis/Suspension

• Aluminum Deltabox III frame, finished in black, boasts high-rigidity with reduced weight, a 600cc-class 54.9" wheelbase, and uses the engine as a fully stressed member for industry-leading handling.
• Solid-mounted engine centralizes rider/machine mass for quick cornering transitions.
• Fully detachable aluminum subframe means easier rear shock access.
• Extra-long (22.9") swingarm features asymmetrical design to accommodate EXUP valve and muffler, as well as high pivot axis.
• Inverted telescopic front fork features 4.7" of travel and rigid, larger-diameter 43mm tubes with high-rate springs and a wide range of damping adjustability for sharpe, responsive cornering performance.
• Front-end geometry provides linear response during cornering.
• One-piece hollow forged aluminum clip-ons and a light weight steering shaft pipe deliver balance and feel.
• 40mm piggyback rear shock with 5.1" of travel features a wide range of adjustability and a light weight aluminum preload adjuster cam to ensure exceptional rear wheel tracking and handling performance.
• Dual 298mm front disc brakes feature gold-anodized, 4-piston calipers with aluminum pistons and sintered brake pads for strong, one-finger stopping power.
• Rear brake set-up features light weight, small-diameter 220mm disc with 2-piston pin-slide-type caliper.
• Cast-aluminum 3-spoke wheels wear competition-spec radials, 120/70-ZR17 front and 190/50-ZR17 rear, for incredible grip.
• Adjustable, 5-position front brake lever.
• Forged footpegs are extra durable and reduce weight.
• Extensive use of hollow bolts and lightweight fasteners help trim overall weight.
• Durable #530 O-ring-sealed drive chain.

Additional Features

• Ultra-sleek bodywork features a sharp front profile and headlight, compact fuel tank, engine-revealing side cowlings and ultra-sleek tailsection.
• 4.5-gallon fuel tank features a narrow, compact profile with deep side cutouts to create a super-aggressive riding position.
• Speedometer console with adjustable LCD illumination features multi-function digital (odometer, dual tripmeters, water temperature) and analog (tachometer) gauges and indicator lights.
• Instrumentation also features shift indicator light, adjustable for pre-selected rpm levels to suit different riding styles or roads.
• Trick, race-spec step-motor tachometer is wafer-thin to reduce weight.
• Dual 60/55-watt multi-reflector headlight features a sleek, cat-eye profile for superb aerodynamics and visibility.
• LED taillight is light in weight and bright, boasting a sleek, single-piece curved design.
• Standard toolkit located in convenient storage compartment under passenger seat.

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