Yamaha's celebrated entry into R World, the YZF-R3 is powered by a high-revving 321cc engine with an emphasis on lightweight, nimble handling and real-world practicality. A perfect choice for everyone from beginning riders to experienced track day enthusiasts, the R3 strikes the right balance of thrilling Supersport performance and everyday comfort in a fun, sporty package that shows off its distinctive R-Series pedigree from every angle. Engine Type: In-Line Displacement: 19.6 cu. in. (321 cc) Bore and Stroke: Bore: 2.68 in. (68 mm); Stroke: 1.74 in. (44.1 mm) Cooling: Liquid Compression Ratio: 11.2:1 Fuel System: Gas Transmission: Manual Front Suspension: Inverted Fork Rear Suspension: Twin Sided Swing Arm Front Brakes: Hydraulic Disc Rear Brakes: Hydraulic Disc Front Tire: Dunlop® Sportmax® GPR-300F 110/70 17 Rear Tire: Dunlop® Sportmax® GPR-300R 140/70 17 Wheelbase: 54.3 in. (1379.2 mm) Seat Height: 30.7 in. (779.8 mm) Rake: 25 Trail: 3.7 in. (94 mm) Fuel Capacity: 3.7 gal. (14 L) MPG: 56 Speedometer: Standard Tachometer: Standard Odometer: Standard