For soft sand like at the beach you need a fat bike, I suggest tires over 4.5". I tried 4.5" tires on a fat bike and then tried 2.35" on my mountain bike. The 2.35 tires were terrible. Possible over short distances only. The fat bike floated on top of the sand, it barely made tire tracks. The pedaling was easy.
Last edited by 2manybikes; 05-03-19 at 08:22 AM.