Learn about the materials used to have bicycle frames in this giveaway bicyclevideo. Expert: Charles mcmahon Contact: www.merionmedia.com Bio: Charles mcmahon is the highbrow emeritus in the Department of Materials Science as well as Engineering during the University of Pennsylvania. He has created the textbook. Filmmaker: Christian Munoz-Donoso

Learn about the materials used to have bicycle frames in this giveaway bicyclevideo. Expert: Charles mcmahon Contact: www.merionmedia.com Bio: Charles mcmahon is the highbrow emeritus in the Department of Materials Science as well as Engineering during the University of Pennsylvania. He has created the textbook. Filmmaker: Christian Munoz-Donoso

Learn about the materials used to have bicycle frames in this giveaway bicyclevideo. Expert: Charles mcmahon Contact: www.merionmedia.com Bio: Charles mcmahon is the highbrow emeritus in the Department of Materials Science as well as Engineering during the University of Pennsylvania. He has created the textbook. Filmmaker: Christian Munoz-Donoso