The displacement may seem small, but the 2-stroke engine delivers a lot of power to make riding the 2013 Yamaha YZ85 fun on any terrain, especially with the close-ratio 6-speed transmission.

The 2012 Yamaha YZ85 is the best dirt bike for teenagers looking to get into motocross. But the YZ85 is far from being a toy: it's an 85cc single-cylinder bike that's ready to race. It sports a ...