Best step-through electric bikes with 20-inch fat tires

Top pick: the 5TH WHEEL LB16. It's the one that ticks both boxes cleanly — a true step-through frame with 20" × 4" fat tires, a 750W motor, a 48V 14.5Ah removable battery, front suspension and 7-speed gearing, and it's UL2849 certified. That combination is what makes it the safest all-rounder for errands, gravel paths and mixed pavement.

Who the others suit:

• Pescroa — same 20"×4" footprint with a punchier 750W (1500W peak) motor and 28 mph assist; pick it if speed matters more than the frame's step-through convenience.
• Yareyi — the long-range choice, with a claimed 80-mile range, rear rack and app control.
• SYX MOTO — the light, simple, budget folder; a 350W Bafang motor and lockout fork, best for short flat trips.
• WINDHORSE — a folding step-thru with a big claimed range, but it's a heavier, bulkier package to live with.

One caveat: the Aventon Aventure 3 Step-Through is the best-built bike here, but its fat tires are larger than 20", so it's not a match for this spec.