The auto-fix is sealant-filled Lite tubes for your everyday ride, commuting, training, or racing. This inner tube is made with high-quality Butyl rubber with a wall thickness of 0.9mm and filled with a specific sealant to seal punctures within seconds. The sealant also improves air retention. Available with Presta or Schrader valve in all common sizes

Features

• Best puncture resistance

• High mileage

• Self-healing