Which bike is better?

http://cgi.ebay.co.uk/MOUNTAIN-BIKE-Stea鈥?/a>








http://direct.tesco.com/q/R.203-4306.asp鈥?/a>





http://direct.tesco.com/q/R.211-7830.asp鈥?/a>





http://www.gumtree.com/p/for-sale/viking鈥?/a>





or does anyone now where i can get a mountain bike that has good suspension and a back brake that lets me do good skids do any of the bikes above do what i ask for?? i think the third one is the best but i dnt no alot about bikes so??|||If you want good rear suspension you will have to pay a lot more money, even second hand. As for the second hand bike at the bottom of your list, look carefully. It has rear suspension, but a suspension seatpost has been added. Doesn't that tell you something?|||The Viking Targa Mantra Mountain Bike Full Suspension, Double Discs has the best brakes. Both of the brakes are disc brakes which are far better than V brakes. (Disc brakes are similar to the ones used in cars) out of all the other bikes, it seems to have better shocks too. I would go for that bike if I had to.|||Cheap full suspension bikes are all junk.