yeah.. you better prepare a diagram. And show me how that Walmart bike qualifies as a carbon fiber bike. I haven't recommended a road bike to the OP. In fact, I'm not recommending any new bike that has to fall under the $500 threshold. I said that I recommended a touring bike first, a cyclocross bike as a close second, and a road bike third. And yes, I'll call that Schwinn Varsity "carbon fiber road bike" sold at Walmart a "toy." It is sold in the "toy section" at the store. In fact, I have talked to Walmart employees about that very bike and said that the description is very misleading... it's actually an aluminum bike. It didn't phase them, and I didn't expect to register with them. The guy did not really know anything about bikes and even said so. I'm really surprised that you provided a link to that bike, I'd feel bad for anyone that bought it and planned on riding for more than a few months.