Sounds like too much fun?
The dirt jumper is a mix between a hardtail mountain bike and a BMX cruiser and fun is indeed what Dirt Jumper Bikes are there for. A dirt jumper bike can roll over obstacles easily and - as the name implies - it's a great choice for the urban street jumper who doesn't want to miss any curb or obstacle. The bike is also very comfortable and therefore it's being used by a lot of riders as their daily ride around town. The geometry of the dirt jumper allows to jump over rocks and curbs without loosing balance. Bike Attack carries dirt jumpers from SE Bikes, Scott, KHS, Free Agent, Marin, Jamis, Cannondale, Orbea and GT.
Note: only for advanced riders, ride at your own risk!