• 27.5" tube, also known as 650B. • Renowned Nutrak quality and value. • Welded 0.9mm butyl rubber construction is robust yet lightweight. • Schrader "car type" valve. • Product Type: Inner Tubes. • Colour: Black. • Size: 27.5 x 1.75 - 2.1 inches. • ETRTO: 47/57-584. • Valve Type: Schrader.
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