2015 YAMAHA YZF-R6,"The Reigning Pro Daytona Sportbike Champion… The R6 rules the track, the twisties and your urban maze. Super light and powerful, it’s packed with endless innovations: YCC-T for flawless response; YCC-I delivering broad power; slipper type clutch and close ration 6 speed transmission for incredible acceleration. Top Features: •Light, powerful, and bristling with knowledge gained from years of racing, the YZF-R6 is the most advanced production 600cc motorcycle Yamaha—or anybody else—has ever built. •The YZF-R6 was the first production motorcycle with YCC-T , Yamaha Chip Controlled Throttle system-for flawless response under all conditions. •YCC-I, Yamaha Chip Controlled Intake, is used on the R6 to vary intake tract length for excellent cylinder filling and a broader powerband. •Back torque-limiting slipper-type clutch greatly facilitates braking/downshifting from high speed. Close-ratio 6-speed transmission delivers seamless power and maximum acceleration. The R6 was born on the racetrack. Its MotoGP-bred technology is tuned to give you the kind of outstanding engine and chassis performance usually reserved for professional racers. The R6 is full of innovations and technology, you just won’t find on the competitor’s machinery. /// Power Ultra-compact, lightweight, short stroke, 599cc, DOHC, 16-valve, liquid-cooled, in-line four-cylinder engine with lightweight titanium valves produces incredible horsepower. Redline is set at an amazing 16,000rpm. /// Performance Lightweight forged pistons feature thin top rings for great high rpm power. The pistons are secured by lightweight tapered type piston pins. The lightweight design means fast engine response. /// Handling Compact, lightweight aluminum Deltabox frame offers an optimized rigidity balance for incredibly light and agile handling. This frame is a MotoGP inspired innovation that Yamaha calls a “straight frame concept?. This means the top spars of the frame lie as close to possible to the frame’s torsional axis (the line connecting the head pipe to the swingarm pivot point). 2015 Yamaha YZF-R6 Features and Benefits /// ENGINE • Ultra-compact, lightweight, short stroke, 599cc, DOHC, 16-valve, liquid-cooled, in-line four-cylinder engine with lightweight titanium valves produces incredible horsepower. Redline is set at an amazing 16,000rpm. • 67mm bore and 42.5mm stroke provide a fast revving powerplant. Engine width is minimized thanks to Yamaha’s special casting technologies and “liner less? cylinder design. • Compact “pent roof? cylinder head design features ultra lightweight titanium valves for both intake and exhaust. The intake valve angle is 11.5 degrees and the exhaust is 12.25 degress. The intake valves are 27mm in diameter while the exhaust valves are 23mm. • Single intake valve springs reduce weight and “friction? for optimum high rpm performance. The valve retainers are made of lightweight aluminum. • High flow intake and exhaust ports allow more fuel in and more exhaust out for great power delivery at all rpms. • Lightweight magnesium cylinder head cover and case covers reduce weight. • Separate cylinder block (the cylinder is not part of the upper crankcase) design utilizes ceramic composite plated “liner less? cylinder bores. The ceramic coating is sprayed directly on the aluminum block. The benefits are greater heat dissipation for consistent power delivery, reduced frictional power loss, reduced oil consumption and since there are no heavy liners, reduced weight too. • Lightweight forged pistons feature thin top rings for great high rpm power. The pistons are secured by lightweight tapered type piston pins. The lightweight design means fast engine response. • Lightweight crankshaft features 31mm bearing journals. The inertial crank mass has been optimized for excellent throttle response and impressive acceleration. The crank journal bearings feature special oil holes that increase the su