SUZUKI GSX R1000

Engine Features

999cc 4-stroke, 4-cylinder, liquid-cooled engine for increased power, torque and acceleration with forged aluminum alloy pistons, chrome-moly shotpeened connecting rods, hollow camshafts, and a secondary balancer shaft for reduced vibration. Compact fuel injection system features the Suzuki Dual Throttle Valve System (SDTV) - with twelve smaller holes for maximum fuel delivery and steeper angle for secondary injectors. Idle Speed Control (ISC) system for improved cold starting, consistent idle quality and reduced emissions. High volume Suzuki Advanced Exhaust System (SAES) with equal length head pipes feeding a unique under engine chamber leading to two compact aluminum/titanium mufflers on each side. The mid-pipe includes a Suzuki Exhaust Tuning (SET) system for maximum torque throughout the rpm range and an oxygen sensor used by the engine management system and combined with the under-engine catalyzer for reduced emissions. 48mm ventilation holes between cylinders reduce pumping losses. Self adjusting hydraulic clutch uses and minimzes changes in clutch feel over a long race. Back-torque limiting clutch allows smooth downshifts, plus a rack and pinion operating system provides a positive clutch feel. S-DMS (Suzuki-Drive Mode Selector) system allows the rider to choose from three engine settings to match track conditions with a handlebar mounted switch. Radiator utilizes a trapezoidal shape seen on works race bikes. The oil pump is larger for increased capacity and performance.

MSRP $11,499

www.suzuki.com

YAMAHA YZFR1

Engine:

Short-stroke 998cc DOHC, 16-valve, liquid-cooled inline four-cylinder engine produces more tractable power than ever. Yamaha Chip Control Throttle controls a 32-bit ECU fuel injection system for super-responsive, smooth, instantaneous power delivery. Yamaha Chip Control Intake electronically adjusts intake funnel length between either 65 or 140mm for an amazingly broad, smooth powerband. Two-piece ergonomically designed fuel tank carries fuel in the rear section, for good centralization of mass, while the front half contains a Ram-Air-fed airbox for increased power.

Lay-down-design cylinder head optimizes weight distribution, straightens intake tracts for improved cylinder filling and allows frame to pass over instead of around the engine for great strength and a narrow chassis. Closed-deck cylinder block increases strength and allows a narrow engine in spite of big, 77mm bores. Narrow-angle four-valve combustion chambers produce a highly efficient 12.7:1 compression ratio; 31mm titanium intake valves and 25mm exhausts controlled by new, high-lift cams flow plenty of air. Light and strong nutless connecting rods with fractured big ends produce a quick-revving engine with excellent high-rpm durability. High silicon-content ceramic-composite cylinder sleeves ensure great heat dissipation for consistent power delivery and reduced friction. Close-ratio six-speed gearbox with triangulated shaft layout for great strength, compactness, and quicker acceleration. Ramp-type slipper clutch makes braking from speed into tight corners while downshifting smoother and therefore faster. Titanium underseat exhaust system (with stainless steel midpipe and catalyst) provides excellent cornering clearance and a broad, seamless powerband. 13-percent greater radiator capacity and an aluminum liquid-cooled oil cooler maintain stable operating temperature. Direct ignition coils, dual-electrode spark plugs and high-output magneto deliver extremely accurate, reliable firing. AC generator behind cylinder block produces a narrow engine with excellent cornering clearance.

MSRP $11,699

www.yamaha-motor.com

HONDA CBR1000RR

There's nothing like a literbike when it comes to awesome performance. But for 2008, Honda's taking that level of performance—and handling—to a whole new level. New engine. New chassis. MotoGP-style exhaust. The all-new CBR1000RR is a Superbike that handles like a 600, but is built to dominate the Superbike class.

ENGINE

Engine Type 999cc liquid-cooled inline four-cylinder, Bore and Stroke 76mm x 55.1mm, Dual Stage Fuel Injection (DSFI), Ignition Computer-controlled digital transistorized with three-dimensional mapping, Compression Ratio 12.3:1, Valve Train DOHC; four valves per cylinder

DRIVE TRAIN

Transmission Close-ratio six-speed, Final Drive #530 O-ring chain

CHASSIS / SUSPENSION / BRAKES

Front Suspension 43mm inverted HMAS cartridge fork with spring preload, rebound and compression damping adjustability; 4.7 inches travel, Rear Suspension Unit Pro-Link HMAS single shock with spring preload, rebound and compression damping adjustability; 5.4 inches travel, Front Brakes Dual radial-mounted four-piston calipers with full-floating 320mm discs, Rear Brake Single 220mm disc, Front Tires 120/70ZR-17 radial, Rear Tires 190/50ZR-17 radial

MSRP $11,599

www.honda.com