Huffy from walmart!! You can get a full suspension for under $100. Sure it is heavy, but your doing it for the work-out... right? Get one of thoes bike trailers to haul the neighbor kids around with. Its just like throwing out an anchor. And if you pull all thoes stupid plastic raceing stickers off the bike, it looks like a $500 bike. Not to mention that when it gets stolen, the jokes on the out of shape theif that has to peddel that tank across town. Plus you can get another brand new bike for under $100 again. Bam, $200 invested now and you still have a new bike. And once you get your endurence up, you will out last anybody on one of thoes expensive carbon bikes!!