2016 Yamaha R3 , Forged aluminum pistons, same technology used for the R1 and R6 means lighter weight and excellent strength at higher temperatures while the offset cylinder helps reduce horsepower loss at the point of combustion. Engine and transmission Displacement 321.0 ccm (19.59 cubic inches) Engine type Twin, four-stroke Engine details All-aluminum DiASil cylinder Power 42.0 HP (30.7 kW)) @ 10750 RPM Torque 29.6 Nm (3.0 kgf-m or 21.8 ft.lbs) @ 9000 RPM Compression 11.2:1 Bore x stroke 68.0 x 44.1 mm (2.7 x 1.7 inches) Valves per cylinder 4 Fuel system Injection. Fuel Injection with YCC-T and YCC-I Fuel control Double Overhead Cams/Twin Cam (DOHC) Ignition TCI: Transistor Controlled Ignition Cooling system Liquid Gearbox 6-speed Transmission type Chain (final drive) Driveline Constant mesh Fuel consumption 4.20 litres/100 km (23.8 km/l or 56.00 mpg) Greenhouse gases 97.4 CO2 g/km. (CO2 - Carbon dioxide emission) Chassis, suspension, brakes and wheels Frame type Steel frame and swingarm Rake (fork angle) 25.0° Trail 94 mm (3.7 inches) Front suspension 41mm KYB telescopic fork Front wheel travel 130 mm (5.1 inches) Rear suspension KYB single shock Rear wheel travel 124 mm (4.9 inches) Front tire 110/70-M17 Rear tire 140/70-M17 Front brakes Single disc Diameter 298 mm (11.7 inches) Rear brakes Single disc Diameter 220 mm (8.7 inches) Physical measures and capacities Weight incl. oil, gas, etc 166.9 kg (368.0 pounds) Seat height 780 mm (30.7 inches) If adjustable, lowest setting. Overall height 1135 mm (44.7 inches) Overall length 2090 mm (82.3 inches) Overall width 719 mm (28.3 inches) Wheelbase 1379 mm (54.3 inches) Fuel capacity 14.00 litres (3.70 US gallons) Oil capacity 2.60 litres (2.75 US quarts) ***All aftermarket parts not installed by an authorized dealer are not warrantied unless stated otherwise***