[Doctor_Fegg]

brouter (http://brouter.de/brouter-web/) is a web interface for customisable bike routing.

Generally the trade-off for customisable routing is speed. If weightings are fully adjustable, you can't easily calculate routing shortcuts, so you have to explore the full graph each time (within the constraints of the broad area you're routing through).

I run https://cycle.travel/ which isn't customisable but is pretty fast, because the routing algorithm it uses (Contraction Hierarchies, via the OSRM routing engine) precalculates shortcuts. It likes low-traffic roads and traffic-free trails - you might find it to your tastes.