Objectif In a first stage, a review of the state of the art and a market research was carried out and the prototypes were defined and selected. We have proposed the study of the viability of producing bicycle frames in plastic, since this material presents multiple advantages in productivity design, look and price. In the case of sports bikes, a racing bike prototype with a monocoque carbon frame of classic design has been chosen. After identifying the prototypes, the technologies and material to be employed were defined. Later, after fine-tuning of production technologies, samples and sub-elements that have been characterized mechanically have been defined. Similarly, the prototypes have been designed (definition of geometry and material distribution) and calculated by finite element method (carbon frame) with the I-DEAS program. The basis of this study has been the elaboration of prototypes. In a first phase a series of prototypes which have been divided and characterized has been elaborated. The data obtained has further enriched the mathematical model. A second series of prototypes has been equipped and evaluated with a simulator. With this data, a third series of further improved frames has been elaborated. The latter have been equipped with deformation sensors attached to a DAD. With this mechanism the real behavior of the bike on the road has been measured. Finally, the definitive prototypes have been made. The advantages and economic and ecological benefits of the studied technologies have been evaluated. Champ scientifique social scienceseconomics and businesseconomicsproduction economicsproductivityengineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsensorsnatural sciencesmathematicspure mathematicsgeometrynatural sciencesmathematicsapplied mathematicsmathematical model Programme(s) FP3-CRAFT - Specific programme of research and technological development in the field of industrial and materials technologies - CRAFT -, 1990-1994 Thème(s) Data not available Appel à propositions Data not available Régime de financement CSC - Cost-sharing contracts Coordinateur Fundación INASMET Asociación de Investigación Metalúrgica del País Vasco Contribution de l’UE Aucune donnée Adresse 12,Camino de Portuetxe 12 20009 San Sebastián Espagne Voir sur la carte Coût total Aucune donnée Participants (1) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire Raze SA Espagne Contribution de l’UE Aucune donnée Adresse S/N,Poligono Ondarria 38100 Alsasua Voir sur la carte Coût total Aucune donnée