PROMOS

20x4.0 WDT all‑black fat tire built for serious e‑bike and fat‑tire bicycle setups.
it uses a motorcycle‑style tread stepped down into a 20x4.0 e‑bike size, with massive 7mm tread depth and big blocky knobs that still form a smooth, fast‑rolling contact patch on pavement.

SPEED RATED: E 40mph+

Key features:

• 20x4.0 wide fat tire for electric bicycles, fat bikes, and e‑moto style builds.

• 7mm deep tread with large blocky knobs for high traction, braking confidence, and long wear life.

• Motorcycle‑inspired pattern stepped down to a 20‑inch fat‑tire e‑bike size for better control under high‑power motors.

• Front and rear compatible – run it as a matching pair on your 20x4 wheels.

• Tubular wire bead construction, 30 TPI casing, 15–30 PSI range, approx. 5lbs, all‑black rubber

• Available as tire‑only or tire + tube depending on your build.

Specs:

• Size: 20x4.0

• Wheel use: front or rear

• Type: tubular tire, wire bead (non‑foldable)

• Tread depth: approx. 7mm

• Cord density: 30 TPI

• Pressure range: 15–30 PSI

• Approx. weight: 5.10 lbs

• Color: all black

97-406

THE ultra fat custom tire with oldschool tread

The ultimate custom cruiser tire for maximum performance!

On 82 mm (3,23 inches) rim as shown it is 98 mm ( 3,86 inches) wide and 61 mm (~ 2,4 inches) high (above the rim).

This tire fits rims of widths 67 mm (~2,64 inces) to 102 mm (~4,02 inches) width!

If you assemble the tire on wide rims not to put more pressure than 30 PSI. It could blast.

But please check frame/fork for clearance!

Weight: 1430 g (~ 3,15 pounds)

30 Tpi

Ride harder with fewer flats. The Fat Tire House E‑Bike Tire Armor Insert adds a thick protective layer inside your fat tire to help shield the tube from thorns, wire, glass, and sharp trail debris, just like premium puncture‑protection systems used on serious e‑bikes.

Mounted between the tire and tube, the insert fills the cavity inside the casing so the wheel feels more solid and supported while still letting you fine‑tune air pressure for comfort and grip. It is a strong upgrade for riders who commute daily, deliver on e‑bikes, or hammer rough paths and want less downtime from flats.

Choose your size (same product, two options)

• Available in 20x3.0 and 20x4.0

• Same armor, same protection – select your tire size at checkout

Highlights

• Puncture‑resistant protection: Helps cut down flats from everyday road and trail hazards

• Semi‑solid ride feel: Internal support makes the tire feel more planted and controlled

• Built for real‑world miles: Great for high‑mileage commuters, delivery riders, and off‑road use

• Simple install: Fits between tire and tube using normal tire levers

Fitment & notes

• Compatible with 20x3.0 and 20x4.0 fat‑tire e‑bikes and mini fat bikes

• Use with quality tubes sized for your tire

• Does not convert the wheel into a completely solid tire; it adds protection and support to your existing tube‑type setup,

Built for cold-weather traction, this 20x4.0 winter fat tire uses a knobby directional tread with metal studs to grip better on snow and packed ice. It’s a tube-type (clincher) tire made for riders who want more control when winter roads get slick.

Notes: Confirm your size is 20x4.0 before ordering. Studded tires are best on snow/ice and can feel slower/noisier on dry pavement.

24x4.0 fat tire wanda COMPASS STREET TIRE. BLACK