20x4 Fat Bike Inner Tubes – 2 Pack
Complete Your Repair
Regular price$17.99
Not sure it fits? Contact us before ordering — we’ll help confirm compatibility.
Be ready for the next flat with two replacement tubes at a better bundle price. This set is designed for compatible 20-inch fat-bike and e-bike tires approximately 3.5–4.0 inches wide.
- Includes two 20x3.5–4.0 inner tubes
- 32 mm Schrader valves for easy inflation
- Useful for repairs, maintenance and carrying a spare
- 2-pack savings compared with buying two separately
Fit check: Confirm the size printed on your tire sidewall before ordering. Tire and wheel are not included.
Compatible e-bike brands and models
- Kasen: Kabbit and Malibu models equipped with 20x4 tires
- Himiway: Escape Pro and Big Dog
- Rad Power Bikes: RadExpand 5, RadExpand 5 Plus, RadMini, RadMini Step-Thru, RadRunner 1, RadRunner 2 and RadRunner Plus equipped with 20x4 tires
- Other brands: E-bikes using 20x3.5–4.0 tires and a matching Schrader valve
Fit check: Compatibility is based on tire size and valve type. Confirm the size printed on your current tire and compare the valve before ordering. Original equipment can vary by model year.