The SporTube is the most classic cycling butyl inner tube; the standard interpretation of the most-used air retention system in the world. A complete range offers the size and specification for every kind of cyclist and discipline, from road cycling to urban commuting.
- Butyl construction
- Disc and rim brake compatible
- Black valve stem
- Labeled Size: 29 x 2.1-2.3
- ISO Width (mm): 53 , 54 , 55 , 56 , 57 , 58
- Shaft Type: Smooth
- ISO Diameter: 622 / Road / 29″
- Valve: Presta Med 41-55mm
- Valve Core: Fixed
- Weight: 210
- Tube Compound: Butyl
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