Auto fix is the name of Vittoria Lite inner tubes which have liquid sealant inside them. These inner tubes are made of high quality butyl with a thickness of 0.9mm and filled with a specific sealant that repairs punctures in seconds. The liquid sealant inside also helps maintain the desired pressure. Available with Presta or Schrader valves in the most common sizes.

Butyl chambers with liquid latex inside

The sealant increases the pressure seal

They repair themselves in seconds