I can use Stack2RSS to easily get RSS feeds of some StackExchange sites but not others:
The pattern if I understand the API is http://stack2rss.stackexchange.com/{SiteName}/questions
Substituting the following for {SiteName} all work
- StackOverflow
- ServerFault
- SuperUser
Substituting the following for {SiteName} all fail to return a feed:
- Bicycles
- English
- Programmers
- Webmasters
bicycles.stackexchange.com
?