Built for all of your on and off road adventures, the Polaris 600RR Hardtail Mountain Bike is packed with high-quality features to get you rolling. This mens mountain bike features a durable front suspension steel hardtail frame. It includes a 21-speed drivetrain with Shimano brand Revo twist shifters, alloy V-brakes, and a shimano rear derailleur to comfortably get you where you need to go. The 600RR Mountain Bicycle features a quick release seat and front tire for easy transport or storage.