Retem, i think you are confusing the Sacramento City Code with the CVC. We have banned sidewalk riding with certain exceptions, I think the CVC defers to local jurisdictions on this matter.
All this aside, there are times where it can make sense to do it. Just remember to ride and act like a pedestrian if you do this. 15mph is not ok on a sidewalk.
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I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC