I’ve notice everyone’s version of a fat is slightly different. For a roadie the old fashion cruiser tire can be considered slightly fatter. Yet not quite what got started as the fat tire more toward scooter width or toward a motorcycle with minimized tread. I’ve found a little more tire when saying getting toward a beach state park barrier Islands, bridges to cross for speed and then going on trails in the throttle adjust assistant while walking it along side into uncharted full sand trails helpful. But I did not need a true fat tire to do so. Because people may be walking thru. If I was on a true wide width fat tire full on all while thru road or full sand trail the wider off road tire and fat tire. Yet that would be a trail not many pedestrians would be on strolling. If near a beach area. The road would have sand in most areas. Roadies venture medium to slow to avoid sliding out. A hybrid slightly wider than road tire ismore my choice in and on beach areas or other sand areas. This way your trail never feels it ever ends. Casual and friendly.

Jeff I want to ride the sand St. George Island florida any sugjestions as to what best motor size getting through areas of soft sand etc

I second what Margarete says. Fat tire bikes are a complete gimmick and do not ride on sand anyway. Try it sometime and see how squirrely they are. You’ll see how ridiculous this statement is. Cruisers do not typically have fat tires.

Beach cruisers are not meant to ride on sand. They’re meant to cruise along a boardwalk or paved beach bike path.