What are the key features and specifications of the Giant ATX 3 mountain bike?

The Giant ATX 3 mountain bike features a lightweight aluminum frame, 27.5-inch wheels, and a suspension fork for smooth rides on rough terrain. It has a 3x7-speed drivetrain for versatile gearing options and powerful disc brakes for reliable stopping power. The bike is designed for entry-level riders looking for a durable and capable mountain bike.