http://www.bikeiowa.com/asp/links/Links.asp?Link_Type=8
I don't live in Iowa but I just did a search on bike shops in that area and came up with this link. It looks like a great place to start, even looks like there's a bike club there. She could always talk to them about where they go for their bike needs. Hope this helps.
Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, champagne in one hand, strawberries in the other, body thoroughly used up, totally worn out and screaming: "Yeah Baby! What a Ride!"