- Schwalbe Tube No. 21
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Standard
- A standard Schwalbe tube holds the air considerably longer. Due to the purity of the rubber compound. Due to the uniform wall thickness.
Extralight
- Reduced weight. Same reliability as the standard version. Not in all sizes.
XXLight
- Extremely light. Only for very few sizes.
Downhill
- Extremely robust. A reinforced rubber base protects against dreaded valve shearing off. Only in Downhill sizes. If you want large volume with low weight, choose Extralight.
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