Limitations in OSM Data

Hello, I have a problem with routing and it seems that there is some traffic limitation in OSM data. My requested routing is only possible in biking mode, not in car mode. Thus I suppose limitations in the origin OSM data. Which is the best way to search for those limitations?

Could you please give a bit more context, like :

  • actual request you are doing
  • response you are getting
  • the limitation you are talking about (?)

Best regards