Physical Size Standards for ATVs

A major cause of accidents among juvenile riders is riding a machine that’s too large for them to handle physically. ATV operators under 16 years of age must meet the following requirements.

• Leg Length: When standing on the footrests, there should be a minimum of three inches of clearance between the seat and the top inseam of the pants. This clearance is required to maintain balance on the footrests when turning and riding over hills and rough terrain. While seated, the thighs should be roughly parallel to the ground, and the knees must be bent at a 45-degree angle.
• Foot Length: A child should be able to reach the brake by rotating the foot on the footrest.
• Arm Length: When seated on the machine, a child’s arms should be long enough to:
  • Turn the handlebars, and maintain a firm grip.
  • Operate the throttle comfortably when the handle is extended fully in a turn.
  • Operate the brake lever. The first joint of the middle finger should extend beyond the brake lever when the child grips the handlebar.
• Grip Reach: When seated on the machine, a child should be able to grip the handlebars without leaning forward. The elbows should be bent at an angle, not straight.