The Yamaha YZF-R6 is full of innovations and technology not found on other middleweight Supersports, designed to be the most exciting bike to race on the track and the most fun to ride on winding roads. Even at full lean, it allows the rider to dial up the throttle and sling shot out of a corner, offering confidence, agility, performance, and fun. It showcases Yamaha’s latest sport bike technologies, including the YCC-T fly-by-wire throttle, MotoGP-inspired straight frame design, and exclusive electronically variable intake stacks, taking super sport riding to a new level. The R6 is track-ready and street-smart, featuring a screaming, 15,000-rpm-plus fuel-injected four-cylinder engine in a taut chassis that snaps from upright to full lean instantly, making it a great street bike too. Packed with tech from world championship race programs, it enhances the man-machine connection, giving riders the confidence to exploit their skills with track-developed electronics like YCC-T for ultimate acceleration and YCC-I for bigger power and torque, plus a race-developed chassis for razor-sharp handling. Engine: Type: 599cc liquid-cooled inline 4-cylinder; DOHC, 16 titanium valves Bore x Stroke: 67.0 x 42.5mm Compression Ratio: 13.1:1 Carburetion: Fuel Injection with YCC-T and YCC-I Ignition: TCI: Transistor Controlled Ignition Transmission: 6-speed w/multi-plate slipper clutch Final Drive: Chain Ultra-compact, lightweight, short stroke, 599cc, DOHC, 16-valve, liquid-cooled, in-line four-cylinder with lightweight titanium valves, redline at 16,000rpm 67mm bore and 42.5mm stroke, minimized engine width with special casting technologies and “liner less? cylinder design Compact “pent roof? cylinder head with ultra lightweight titanium valves, intake valve angle 11.5 degrees, exhaust 12.25 degrees, intake valves 27mm, exhaust valves 23mm Single intake valve springs reduce weight and friction for optimum high rpm performance, revised valve spring material High flow intake and exhaust ports, lightweight magnesium cylinder head cover and case covers Separate cylinder block with ceramic composite plated “liner less? cylinder bores for greater heat dissipation, reduced frictional power loss, and oil consumption Lightweight forged pistons with thin top rings, secured by lightweight tapered type piston pins Lightweight crankshaft with 31mm bearing journals, optimized inertial crank mass for excellent throttle response and acceleration, new design oil holes in crank journal bearings High lift / high performance, hollow, side-driven camshafts Semi-hydraulic type automatic cam chain tensioner Mikuni fuel injection system with 41mm throttle bodies, twin injectors (primary & secondary), 12 spray holes per injector, secondary injectors function at mid rpms (6,000 to 7,000rpm) to redline Separate TPS (throttle position sensor) and APS (accelerator position sensor) sensors Yamaha Chip Control Throttle (YCC-T) with Throttle Position Sensor (TPS) and D.C. motor driven throttle valves, 3 ECUs inside main ECU for ignition, fuel injection, and YCC-T, responds at 1000th of a second YCC-I with variable intake funnels/stacks (66mm at low to mid rpms, 26mm at high rpm, transition at approx. 13,700 rpms), takes 0.3 seconds to move from tall to short position 7.6 litre air box with viscous type air filter Ram Air Induction System with centrally located intake duct for optimal combustion and greater horsepower at higher speeds Close ratio 6-speed transmission with optimized gear widths, splines, and engagement dogs, shift drum and mechanism on right side for smooth shifting, flat contact-type engagement dogs “Tri-Axis? or stacked transmission design for compact engine, optimized engine placement for balanced weight distribution and handling Slipper or back limiter clutch assembly with 9 paper based friction plates, 8 steel plates, and 6 coil-type clutch springs Optimized oil lubrication system with “two side? oil pump, separate liquid-cooled oil cooler