The best fit parameters we find in order to reproduce the ARGO **data** with our model are ESN = 10 51 erg, ℜ = 1/15 yr −1 , EM ∼ = 507 TeV and ξCR ∼ = 5.2%. While it is clear that the spectrum of light nuclei (H+He) is easily accounted for, it is equally clear that the all-particle spectrum knee cannot be reproduced within a simple approach such as the one discussed here.    [26,28], with k = 9, ESN = 10 51 erg, ℜ = 1/15 yr −1 , EM ∼ = 507 TeV and ξCR ∼ = 5.2%.