I am currently looking to upgrade to a better bike than the one i have. I recently began riding down trails with heavy ruts. A friend of mine has a k2 that cost about $800. It has full suspension. He is able to hit the ruts at a much higher speed than me. I am looking for a full suspension bike that will make make the ride a little more tolerable on these trails for around $400. Some sections are long and steap and begin to wear on the wrists after a lot of breaking and i was wondering if disks breaks would help this. I know nothing of the brand names of bikes. I saw that the Jeep cherokee classic bike has disc breaks and full suspension, and was wondering peoples opinions on this. Also i was hoping to find out if there was anything similar but better in this price range.