Heh, i think after living in the Haight a bunch of years, i walked, ran, skated, rollerbladed and biked &lt; 5% of the streets<p>This was good, vid on the steepest sidewalks: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=FisaHV2hQYc" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=FisaHV2hQYc</a>