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Super Thick Self-Sealing Bicycle Tubes 20" x 1.75-2.125" Schrader

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Slime inside tube

Our beloved self-sealing tubes, only thicker and stronger. Gain extra protection against punctures and ride protected for up to 2 years with Slime’s super thick self-sealing tubes.

Heavy-duty tubes!
Seals multiple punctures repeatedly for up to 2 years
Seals tread area punctures up to 1/8″ (3mm) in size
Non-toxic and non-flammable
Cleans up with water

Prop 65 Warning

• 20" x 1.75-2.125"
• Schrader valve stem
• Thicker and stronger tube for extra flat tire protection
• Pre-filled with puncture stopping Slime tube sealant
• Prevents flats for 2 years!
• Part #30079

Between the dozens of size options and the various valve stem types (Presta, what is that?), selecting the correct tube for your bike can be challenging. Check out our quick tube guide to help you select the perfect tire tube for your bicycle every time.

What Tube Size Do I Need? What Valve Does My Tire Have?

Click Here to view warranty information.