The Shomer Shabbos Khilchisah (I think it is Perek Chaf Gimmel Siman Yud Zayin says a tricycle is muttar for a child but a bicycle is Assur). the sefer Tiltulei Shabbos quotes R’ Moshe Feinstein that it is assur due to Hotzoa as bicycles are ridden in Rshus Harabim.
Menu