We rented bikes from Sports Basement. The store is conveniently located at Crissy Field in the Presidio. It is across the street from the bike path that goes across the Golden Gate Bridge and to the Palace of Fine Arts. The Jamis bikes were great quality, shifted easily, and rode well. The price for 3 hours is only $15.00. No reservation was required. It is also a huge sporting goods store. Note: The GPS didn't recognize Old Mason St. You can map it to Mason St. instead. Also there is construction going on in the area, so your GPS might be confused.
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