Actually, the accepted halacha is that using a bicycle is prohibited on Shabbos. The reason is a bit unclear; one source I found (I think I posted it here once) says it’s because one might come to fix it.
Actually, the accepted halacha is that using a bicycle is prohibited on Shabbos. The reason is a bit unclear; one source I found (I think I posted it here once) says it’s because one might come to fix it.