The Razor MX500 dirt rocket bike comes with a 500-watt motor that delivers a maximum speed of up to 15 mph. It's suitable for teens 14 years and above. This electric bike has dual suspension with riser handlebars for a comfortable ride through uneven terrains. Its 16" front and rear wheels are made of rubber for durability. The Razor dirt rocket electric bike comes with a rechargeable battery that provides 20 miles of fun riding on a single recharge. It has an estimated charge time of about 4 to 5 hours and comes with a UL listed battery charger.