I personally found San Fran fairly rough, espically downtown after dark. take a worn out back tyre & skid the hell outta it down lombard street, had such a laff there on some hire bikes
grand canyon is a fair old drive from LA across some real boring desert, but we did it confortably within a day. north rim significantly harder to get to, but even better views as its higher altitude. deffo worth seeing tho... thats the problem with the states, so much to see!
san fran, tioga pass, yosemite, death valley, vegas was a cool trip
monument valley at eastern end of death valley (remeber air wolf & all those westerns),... cool looking place but thats adding some serious time/mileage to the trip... hell any further west you may as well pop into durango & see ameybrook
hahaha (1 of these days I'll get to ride hermosa without snow!)
sh,t man I wanna go out there now... maybe interbike again this year