I am looking to get my 9 yr old a BMX bike for racing. I am looking to spend no more than $400. I want to get a good light frame and can always upgrade components later as the stock ones break down. I have been sidetracked to the Specialized Hemi Pro or Comp versions. I can obviously get a better deal on last years versions but am not sure about performance difference and do not trust retailers since they have other motives like stock liquidation! Thanks for any assistance!