Fall-winter means it's time for bigger rides in the Santa Ana's. This is an advanced ride, both for mileage, pace and technicality.
21 miles, 4600ft at about 4hrs.
Here is a Strava link that's on point for expected pace.
https://www.strava.com/activities/457548344/
Call and speak with Shawn, if you are not sure if this ride is for you.
949-581-8900