Bell Self-Seal Inner Tubes eliminate flats while riding, using a pre-installed liquid sealant that instantly seals holes up to 1/8″. Suitable for cruiser and mountain bike tires, this durable tube offers a long-lasting solution to punctures. With a Schrader valve and 40mm length, it fits a variety of bike setups. See tire sidewall for Max PSI to avoid overinflation.
Product Highlights
- Self-sealing technology for puncture protection up to 1/8″.
- Liquid sealant lasts up to 2 years, won’t dry or freeze.
- 340g tube weight for a balance between durability and performance.
- Schrader valve with 40mm length and valve core cap for easy inflation.



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