I use komoot a lot to filter special road for cycling , mountainbiking and hiking.
With detailed info about the surface, type of road and height info it helps me to prepare our rides and walks.

Especially in a area where I unknown.

Below the steps I did use to create a bikeride in the USA during a work trip.

Click on the image for a larger picture.

Go to the komoot.com website.
Create an account.
Now click on plan.

Select the type of ride.

start planning
Right click on the map, select start here.

start route