TST 4.0 Fat Tire Foldable Electric Bike, 48V 13Ah, 750W, 20 inch, Black
TST 4.0 Fat Tire Foldable Electric Bike, 48V 13Ah, 750W, 20 inch, Black
The TST 4.0 is a black fat tire foldable electric commuter bicycle with a 48V 13Ah battery, 750W motor, LCD display, and one-step folding design. It is designed for men and women and can fit in cars, SUVs, and RVs.
- Battery: 48V 13Ah removable Samsung LG battery
- Motor: 750W brushless hub motor
- Range: Up to 34 miles (55km) in pedal-assist mode after a full charge
- Top speed: 28 mph
- Torque: 90Nm
- Folding: 20 inch one-step folding electric city bike
- Suspension: Seat and fork dual suspension
- Brakes: Dual disc brakes
- Gears: 7-speed gear shift
- Riding modes: Three modes with five pedal-assist levels
- Display: LCD with speed, mileage, and battery status
Shipping, returns & fit
Shipping is free on every U.S. order — no minimum. Orders are processed in 1–2 business days, then delivered in another 5–8 business days. We currently ship to U.S. addresses only.
Orders are picked and packed within 1–2 business days. Once shipped, delivery normally takes another 3–7 business days, and you'll receive a tracking link by email. Full details on our Shipping Policy.
You have 30 days from delivery to return any unworn item with tags in its original packaging. Return postage is paid by the buyer, unless your item arrived damaged, wrong, or never arrived — in those cases we replace it or refund you in full and cover the postage.
Approved refunds go back to your original payment method within 5–10 business days. See the full Refund Policy.
Sizes and measurements for each piece are listed in the description above. Colors may vary slightly between screens and batches — that is normal, not a defect.
Email support@ninasfashionshop.com, or use our contact form. A real person reads every message, Mon–Fri, 9 AM – 5 PM PT — usually answered the same business day.