So Im new to cycling and would buying a bike to commute to school and back. 6mile round trip. My question is Ive done alot of research and with my price budget the only bikes out there are the Vilano, Merax Finiss, Giarando rapido, Biciclo turbo tecknic 2.0. I start class in just a few days and need a bike fast. Remember I only have $300 and i checked CL in my area and all the bikes are either really old or too much. Which bike would be the best for me?