Four mistakes cause most first-month problems: a bike that is too tall, no gear, too much displacement, and no setup.

US youth ATV rules are set by speed, not engine size. CPSC advice says under-16s should not ride adult ATVs.

The difference between a pit bike and a dirt bike is wheel size, seat height and wheelbase, not engine capacity.

On a motocross bike, rider weight sets the suspension setup and the class. Here is how to size by weight,

Four numbers decide whether you regret an ATV purchase: seat height, wet weight, clearance and payload. Here is how those

UTVs and ATVs differ first in width, seating layout and payload, not engine size. Here are the 3 dimensions that

Seat height and kerb mass decide whether an adult can actually control an ATV. Here are measured figures from our

Voltage is a platform, not a speed. Here is how range, torque and weight really work on a 60V electric

Top speed depends on output, mass, gearing and surface, not engine cc alone. Here are the 3 inputs we publish,

Trail riding needs low and mid-range torque, softer suspension and rear grip rather than peak power. Here are the 5