| Razor MX350 Dirt Rocket Electric Bike Black 15128090 Razor MX350 Dirt Rocket Electric Bike Black 15128090. Large knobby tires twist grip throttle hand-operated back brake and chain-driven motor deliver top-notch performance. ELECTRIC POWER The MX350 Dirt Rocket has received multiple toy awards as well as... more | | $399.99 FREE shipping go to store |