Originally Posted by Cyclebum
that big green chunk of land is clearly labeled "Yosemite National Park."
Make that "mislabeled".
That's the problem with Bikely and many of the auto-generated routes.
I seen people put up maps that send them down private roads that are often impassable.
Between the Sierras and the Rockies there is a lot of remote country.
One would be prudent to use other, more conventional sources.
As for the Bikely route - it takes you over the Sierras on Hwy 108.
At no time are you in Yosemite National Park.
The grades are steep - - 20% + in places.
The scenery is nice up top - but nothing like Yosemite.
Sonora Pass usually opens a week before Tioga Pass.
So I have had to detour 100+ miles via Sonora when Tioga has been closed.
And that was in late May both times.
You are not allowed on the freeways in the Bay Area as Valygrl said -
You don't want to be on Hwy 160 or Hwy 12.
You probably aren't allowed on I-5 either - but the old highway runs parallel.
Given the parameters the OP mentioned - heading south on the coast -
Golden Gate to Santa Cruz - 84 miles
Santa Cruz to Hollister - 37 miles
Hollister to Firebaugh - 83 miles
Firebaugh to Chowchilla - 25 miles
Chowchilla to Mariposa - 40 miles
Mariposa to Yosemite - 44 miles
So it's 313 miles to Yosemite via the coast and Panoche Pass.
For newbies I would allow at least 5 days.
There are Hiker/Biker campsites at Half Moon and Sunset Beach -
Easy first two days. Mercey Hot Springs makes a great stop.
You can guerrilla camp a a small reservoir northeast of Chowchilla.
Yosemite to Lee Vining - 72 miles
Lee Vining to Benton - 51 miles
Benton to Tonopah - 81 miles
Tonopah to Vegas via US 95 (bleah) - 206 miles
Tonopah to Vegas via Hwy 375 - 246 miles
Yosemite to Vegas - 410 to 450 miles
It's easier to do more miles in the wide open spaces.
I would allow at least 6 days since there are some big climbs.
Maybe seven days if you are doing the longer option.
So that means 11 or 12 travel days -
Starting at a very moderate pace on the coast and doing more later.