Originally Posted by
1-track-mind
... and if you were going to do a hub and spoke ? Galway,Westport or Ballina?
Personally I would go for Westport because it's a town rather than a city like Galway and has good cycling facilities and businesses that serve the Greenway. Ballina is fine but more limited.
Both Westport and Galway are popular visitor towns/cities so best to book your accommodation ahead of time.
Good luck.