Would a 5'10 and 155 lbs person fit on a yz 85?

A person who is 5'10" and weighs 155 lbs would likely find the Yamaha YZ85 to be quite small, as the bike is designed for younger riders and has a lower seat height and weight capacity. Typically, the YZ85 is suited for riders around 5' to 5'5" and under 130 lbs. While they could technically ride it, they may be uncomfortable and outgrow it quickly. A larger bike, such as the YZ125 or YZ250F, would be a better fit for someone of that height and weight.