Engine Details

* Completely redesigned short-stroke 998cc, DOHC, 20-valve, liquid-cooled, inline 4-cylinder engine now produces 180 horsepower at an amazing 12,500 rpm (with Ram-Air).
* All-new, 27mm narrower fuel injection system uses motor-driven secondary throttle valves and 32-bit ECU for super-responsive, instantaneous power delivery.
* Two-piece ergonomically designed fuel tank carries fuel in the rear section, for good centralization of mass, while the front half contains a new, Ram-Air-fed airbox for increased power.
* Re-angled cylinder head-40 degrees forward instead of 30-optimizes weight distribution, straightens intake tracts for improved cylinder filling, and allows frame to pass over instead of around the engine for great strength.
* Radical new closed-deck cylinder block reduces cylinder pitch, allowing an engine with 3mm wider bores to grow only 2.8mm wider instead of 12mm.
* Narrower-angle 5-valve combustion chambers produce a highly efficient 12.3:1 compression ratio. Bigger valves and intake cams with more lift and duration flow more air.
* 16% lighter crankshaft, 3% lighter forged pistons, and 9% lighter 7.5mm shorter carburized connecting rods with perfectly mated big ends add up to a quicker-revving engine with excellent high-rpm durability.
* High silicon-content ceramic-composite cylinder sleeves ensure greater heat dissipation for consistent power delivery and reduced friction.
* Strong, yet lightweight clutch and close-ratio 6-speed gearbox with triangulated shaft layout for increased strength, compactness, and quicker acceleration.
* Titanium underseat exhaust system (except for stainless steel midpipe with catalyst) contains a new titanium EXUP valve for a broad, seamless powerband.
* High-efficiency curved radiator and an aluminum liquid-cooled oil cooler maintain stable operating temperature.
* Direct ignition coils, new dual-electrode spark plugs and high-output magneto deliver more reliable firing.
* AC generator moves behind cylinder block for a narrow engine with excellent cornering clearance.ll-new, aluminum Deltabox main frame rails pass over the engine instead of around it, resulting in a structure that's 200% more rigid vertically, 50% stiffer laterally, and 30% stiffer torsionally.
Overall frame width is reduced from 464 to 395.6mm, which produces more comfortable ergonomics as well as more efficient aerodynamic penetration.
All-new, Controlled Fill die cast, truss-type swingarm is 30% stronger and long for optimal traction and feedback.
Front-end geometry with 5mm more fork offset and reduced trail from 103mm to 97mm for increased maneuverability.
The rider, is repositioned for greater comfort too: Clip-on handlebars are 10mm higher, footpegs are 2.5mm further forward and 7.5mm lower, and the fuel tank is narrower.
Controlled Fill die cast, detachable aluminum subframe is light, strong and allows easy rear shock access.
Rear brake caliper is 12% lighter and rear disk is 10 grams lighter.
Dual 320mm front disc brakes; lighter/stronger, forged one-piece radial-mount calipers and Brembo radial-pump front master cylinder with adjustable lever delivers great braking controllability.
Fully adjustable KYB inverted telescopic front fork gets stiffer springs, 4.7" of travel, and rigid 43mm tubes.
Piggyback rear shock gets a stiffer spring, 5.1" of wheel travel, full adjustability and a lightweight, accessible aluminum preload adjustment collar.
New, 5-spoke wheels are 10% lighter in front and 7.5% lighter in rear for improved acceleration, deceleration, handling and suspension action.
Underseat titanium exhaust system is lightweight, reduces drag, enhances mass centralization, allows 56 degrees of cornering clearance-and adds to R1's predatory appearance.