Q-Tubes 20" x 3.50-4.50" Inner Tube

This inner tube fits the Aventon Sinch ebike, as well as some other 20" fatbikes on the market. 
  • Butyl rubber construction
  • Schrader (automotive) type valve
  • for 20 x 3.5-4.5" tires

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Q-Tubes 20" x 3.50-4.50" Inner Tube