don't buy second hand enless you ride the bike first and know what you are doing, as their may be faults that you dont notice at first. although you probably havn't considered it, i think you should get the t-vee, as its a much cheaper bike, and as soon as you begin to improve you'll want differant things, and the t-bird really is no better than the t-vee. or make some freinds in the triall community and they will probably know someone who is selling a bike cheaply, and they will check it out for you