Inner tubes are essential components of bicycles that are located inside the tyres. They hold air under pressure and provide an air cushion that helps to absorb shocks while riding. Bicycle tubes are usually made of vulcanised rubber or butyl, which is a type of synthetic rubber.
Inner tube for 650B and 650A tyres
for 650x35B tyres and others...
ETRTO rating: 32/40/584/590
compatible tyre diameter in inches: 26, 27.5
compatible tyre width in inches: 1 1/4 - 1 3/8
presta valve: 40 mm
tube material: Butyl
weight: 140 g
valve colour: silver
condition: brand new
Data sheet
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