Love the idea, but for Chicago on an ebike- it's off. Same issue as every other map for bikes tool. Sends you down some technically valid, but fairly sus routes, that I would never take (ie the route maker you're using as an underlyer is probably to blame.) It also is doing weird stuff like skipping green ways (idk if those exist in SF, but they're nominally safer here).

Cool idea!

FYI. Something is off about the data. It said there was one route and that scooter was 7 minutes faster than biking. E-bike was 16 minutes and scooter was 24 minutes.