Bakcou | Heavy Duty Fat Tire Tube (Single) - Military-Grade Butyl Rubber, 3.5mm Base Thickness, Schrader Valve - Ideal for Electric Bikes, Mountain Bikes, and Traditional Fat-Tire Bikes - 20x4

Features Military-grade butyl rubber heavy duty bike tube with variable thicknesses to keep weight down and give your tires strength where you need it.

Upgrade your fat tire bike and avoid punctures with Bakcou’'s ultra-grade, heavy duty bike tubes made for fat tire bikes.

These heavy duty fat tire bike tubes are compatible with both fat tire electric bikes and traditional fat tire bikes.

The heavy thickness (3.5mm) of the rubber at the base of the fat bike tire tapers up to a thinner, light-weight thickness (1.8mm) against the rim of the tire.

Incredible upgrade from the standard 1.7mm thickness in a traditional fat tire tube and takes your protection against punctures to the next level.