All-terrain bike and Trail bike

All-terrain bike noun - A bicycle with a sturdy frame and fat tires; originally designed for riding in mountainous country.

Trail bike and all-terrain bike are semantically related. in bicycle for rough terrain topic. In some cases you can use "Trail bike" instead a noun phrase "All-terrain bike".

Trail bike noun - A lightweight motorcycle equipped with rugged tires and suspension; an off-road motorcycle designed for riding cross country or over unpaved ground.

All-terrain bike and trail bike are semantically related. You can use "All-terrain bike" instead a noun phrase "Trail bike".