You should probably ask permission and give credit to Ashley Wright, as it seems his article is a major source of information for your wikia page. He's very accessible and would probably appreciate correspondence with you if you have questions, and he may have leads for you to investigate to fill in some blanks.
You should also probably get some people to read your wikia page for accuracy. For instance, Ashley Wright was very careful to note the Cinelli Equipe was a joint venture, but he never states that Cino Cinelli designed it. Instead, he quotes an advertisement which states this. There is some question about Cino's direct involvement, which may have been not much at all.
There's a hyperlink to Ashley Wright's email, or as Robbie says, you can contact him here by sending a message to member A.Winthrop.