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The Schwalbe 12B is a very reliable, pressure-resistant tube for 26” & 27.5" tyres. Schwalbe tubes are known for consistency in wall thickness and high elasticity. Thus, the tube can cover a range of tyre sizes.
· Material: butyl
· 26 x 3/4 - 1.0" / 20-584/590 -> 28-584/590
· Weight: approx. 90 g
· Presta valve (40 mm)
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