flohoff
See this route for example - The whole of the E06 where tagged as trunk needs to be validated. I guess it needs a log of bicycle=yes along the road.

https://www.openstreetmap.org/directions?engine=fossgis_osrm_bike&route=69.7888%2C30.8021%3B68.9152%2C26.9898#map=7/68.415/33.761