Okay, first . . . you don't "hire" bikes here like you do in Australia or the U.K. Instead you "rent" them. Just so you know when you get here . . .

That said, for E-Bikes:

URBAN BICYCLE OUTFITTERS
1900 NORTH EL CAMINO REAL
SAN CLEMENTE, CA 92672
.
949-492-5737

Ask for Pete Van Nuys. Not sure if he rents E-bikes but he would probably know where you could rent them.

Rick / OCRR