Schwalbe inner tube no. 21 F Extralight 54-584

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Product description

Extra light tube for 27.5" tires. Same reliability, reduced weight. Proven for many years.

Specifications

Range of use	all mountain
ERTRO	40-584 to 62-584
Tire size	27,5 x 1.50" up to 27,5 x 2.40"
Tube material	Butyl
Valve type	SV 40 mm

Suitable dimensions (ETRTO)

27,5 x 1.50 (40-584)
27,5 x 1.75 (47-584)
27,5 x 2.00 (50-584)
27,5 x 2.10 (54-584)
27,5 x 2.25 (57-584)
27,5 x 2.35 (60-584)
27,5 x 2.40 (62-584)

A bicycle inner tube is usually made of butyl rubber. Butyl is a very elastic and at the same time airtight synthetic rubber. Just as with tires, however, other additives are necessary for the rubber compound. Significant differences in quality can result from the rubber compound used. Schwalbe inner tubes are extremely air-tight and elastic. Due to the high elasticity, a tube covers a wide range of different tire sizes.

Product details