There is a hardcoded 50km limit for isochrone requests. I assume this is for performance reasons? It seems low for a wide variety of applications - is there a good approach for increasing this. If it helps I’m in NZ which has a fairly sparse road network and I’ve only imported the NZ data.
We need to make this configurable. Have created an issue: https://github.com/graphhopper/graphhopper/issues/1487
Maybe you have a bit time to contribute this ?