average cost to maintain a dirt bike
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.