This is a 9.4 mile segment, the very north end of the SART, from Waterman Avenue in San Bernardino to Mt. Rubidoux in Riverside. This is just from this month:
So if your pace happens to be slower than 20mph or so, plan on being passed. Expecting someone to announce it is just ridiculous. As someone has mentioned, do you toot
your horn at every car you're going to pass? If you ride on this:
...which is basically as close as we can get to a freeway for bicycles, expect "traffic" to be moving along at a decent clip. I'm not being rude by not announcing to every bike I pass.
I'm literally just minding my own business.