Having just ridden the il Primitivo, I found the following bike shops. I do not have the names, just the street locations
Oviedo - Calle del Rio San Pedro
Salas - Avenida del Llaniello
Lugo - Avenida de Madrid
Melide - 2 on Rhonda de la Coruna
Samtiago - Bicicletas Velocipedo - Rua de San Pedro
Hope this helps
Oviedo - Calle del Rio San Pedro
Salas - Avenida del Llaniello
Lugo - Avenida de Madrid
Melide - 2 on Rhonda de la Coruna
Samtiago - Bicicletas Velocipedo - Rua de San Pedro
Hope this helps