The 4600 is a bike that is worth about 70-100 bucks more than you pay for. The first thing that I did when i got mine was swap out the stem, but that is personal preference. I would strongly recommend it, as I feel that it is the best value in this price range. There is very little about it to find out there, but I give it my full recommendation. I tested the Rockhopper, but the SRAM was a HUGE improvement over the Deore on the Rockhopper. This thing is crazy tough, perfect for aggressive XC, bouncing through tech rock sections, stunts and all that good stuff. You will not be disappointed.