I took the classic SF bike tour on pedaled bikes (no E-bike). This was a great tour. Josh was the tour guide, but he was training 2 additional guides so we had the benefit of 3 guides on the trip. The staff on check-in were friendly, and the bikes were in good shape - 7 speed upright handlebars, very adequate for our ride. We toured through the Farmer's Market, stopping for snacks, then pedaled on through may of the notable areas of San Francisco. There were frequent stops to admire architecture, learn about the city, or get snacks. The pace was perfect, not rushed at all. Josh was knowledgeable throughout the tour and clearly loves his city. We finished around 1:30, and he provided suggestions for lunch spots nearby. I am a regular cyclist, so the distances covered were easy for me. Someone who never rides a bike might want to opt for the e-bike tour, but anyone who can sit on a bike for a few hours can manage this tour.
I love touring cities on a bike as a way to get the pulse of the city. I recommend this tour highly. It really provided a great view of San Francisco.