Product information "SCHWALBE TUBE ITEM 21A (27.5")"
Schwalbe EXTRA LIGHT tube Item 21A. For bicylce tires in 27,5" inch (ETRTO 40/62-584). Low weight, but same reliability as a Schwalbe standard tube.
ETRTO:
40/62-584
Valve:
SV
Valve length:
40 mm
Bead:
Butyl
Execution Tube:
Extralight
Item:
21a