2 months. Now that their eyes are starting to work together, most babies can track a moving object. Your newborn's brain is beginning to perceive and follow motion, so he'll love watching a mobile or playing in front of a child-safe mirror.
1 On average, a dirt bike can range anywhere from $300 to as high as $3,000 for a high-powered bike. 2  For example, PowerSportsMax.com sell dirt bikes that have different engines ranging from 70 cc to 250 cc.3  The price for the dirt bikes sold with this store can range anywhere from $380 to $1,400. For example, PowerSportsMax.com sell dirt bikes that have different engines ranging from 70 cc to 250 cc. 2  The price for the dirt bikes sold with this store can range anywhere from $380 to $1,400.
1 Performance Bicycle sells the Dahon Vitesse bike that folds up in 15 seconds for $409. 2  High-end bikes cost $1,000 and higher. 3  These models are usually made of the lightest metals, including carbon and titanium, and are designed for more rigorous, everyday use or light competition. Trek offers a wide variety of bikes for commuting and touring at an average of $1,000, though some bikes from the geometrically sound Pilot series models cost more than $3,000.