I remember riding bikes as a kid and occasionally doing “ghost riders” – where you’d start down a hill and then hop off and let the bike ride by itself to inevitably fall over or crash into something. You probably wouldn’t want to do that with this $9,400 S-Works Epic 29er from Specialized, even though it could probably handle it. The large 29 inch carbon rimmed wheels that ride on front and rear shocks cruise over stumps, rocks, and other mountain path obstacles.  Made with only lightweight materials, this full suspension mountain bike weights under 22 lbs. While this tricked out bike may be a bit much for the average Joe, Specialized offers many reasonably priced mountain bikes as well. Mountain biking is a fun and high cardio outdoor activity, so get out there and ride!