Inner tube ULIP 20×4.0 for Fafrees F20 X-Max

ULIP 20×4.0 Inner Tube for Fafrees F20 X-Max

Model-specific offer for the Fafrees F20 X-Max, a folding long-range fat e-bike. The official EU website states CST 20 × 4.0 and butyl inner tubes. The ULIP inner tube is therefore intended for replacement on a bike that still uses the original or equivalent 20×4.0 tire with an inner tube.

Why it is suitable

• Size: 20×4.0; the manufacturer's additional inner tube designation is 3.50-16.
• Usage: wide fat-bike tires for asphalt, gravel, sand, and other mixed terrains.
• Material: flexible butyl rubber for good air retention and damping.
• Model: prepared as a search-accurate offer for the Fafrees F20 X-Max.

Verification before ordering

Check the 20×4.0 marking and the valve/rim type on the sidewall of your existing tire. Models may vary by year or market. This inner tube is not intended for dimensions 20×3.0, 20×2.125, 24×4.0, or 26×4.0 and is not a substitute for a dedicated tubeless setup. The package contains one inner tube.