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 Bike sells a wide variety of helmets in an average range of $30 to $40, though some are high as $130 for the flashy red-and-black Bell Sweep R Road Helmet with 20 head vents.2  Riding shoes are more for competitive riders, though leisure riders certainly benefit from the better grip they offer on the pedals. 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. 2  Trek also sells tandem bikes, or those for two riders, from $660 to $3,630.