A word of advice -- i used to work for Walmart and in my store the bikes were built by untrained and self taught associates. They built the bike, made sure the brakes worked [maybe] and out to the sales floor it went. If you decide on a department store bike first thing i would do is go through it and tighten every bolt, nut and check the shifting and brakes, also they are not lubed, chain etc. - or take it to a bike shop for a complete check over.