The 2008 Triumph Street uses the same engine as the Daytona: a four-stroke liquid-cooled horizontal inline three-cylinder unit that displaces at 675 cubic centimeters. Indeed, the bike is officially known as the ""Triumph Street Triple 675"" for the engine""s number of cylinders, as well as its displacement. However, with 107 horsepower at 11,700 revolutions per minute (RPM) and 51 pound-feet of torque at 9,100 RPM, the Street engine is slightly less powerful than that of the Daytona. Twelve intake valves are on the engine, with four on each cylinder. Each engine has a bore and stroke of 2.92 x 2.06 inches (74 x 52.3 millimeters) and a compression ratio of 12.7 to 1.