@Mobutusan - Most of these you wouldn’t bother climbing. People don’t even walk up these hills They’ll usually have stairs on the side.
I think a 4WD setup would do it but 2WD w/ perhaps a running head start would climb it.
The problem is when you lose momentum going uphill because the hill get’s harder at the top. Most of these areas aren’t really flat either so that one crack or one pebble on the road will throw your momentum off.
Fillmore between Vallejo and Broadway 24% Grade
Not too sure what this hill is but I’d say it’s pretty steep.
Coordinates - 37.7973442,-122.4037087
Checkout the street view…
This one I climb easily… You’ll get people staring at you climb the hill
You can go a little steeper than this hill probably but you need nice pavement. You get a crack or bump… There’s no way you can power over these hills from the middle of the hill. Too much heat goes into the motors because the board won’t move and you keep feeding it power.