My vote is yes. Around here it was (and is) still considered a tricycle. While it may actually have 4 tires, it basically has 3 points of contact on the ground..... <!-- s:wink: --><img src="{SMILIES_PATH}/icon_wink.gif" alt=":wink:" title="Wink" /><!-- s:wink: -->  As a kid, I never used one, they were always considered &quot;tippy&quot; on the side hills.  Looking back, I don't think they were so bad, but I do know 2 fellas who tipped them over when they were using a loader on the side hill....one died in the accident. Too bad. I have a H-P 70  tricycle and it is a pleasure to use.
                                    Cal