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Description
The latest innovation to hit the mountain bike scene is 650b mountain bikes and the American company has designed the Specialized 26 x 3.8-4.8 Presta Valve Inner Tube 40mm for just these machines. The 650b specific inner tube features a 40-millimetre Presta valve, which makes it easy to inflate using a range of floor and mini pumps. Strong butyl rubber has a consistent thickness for added durability and to provide puncture protection.
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