125cc motorcycles can reach top speeds of around 60 miles per hour, with some of the fastest bikes reaching speeds of around 70 miles per hour. The make and model of the bike will largely determine ...

Jumping from a youth dirt ... 125cc four-stroke trail bike class is its TT-R125LE. The heart of this motorcycle is a carbureted air-cooled SOHC four-stroke 124cc single-cylinder engine with a five ...