Vittoria Standard Butyl Inner Tubes for Gravel 650b / 27.5 BikeType_Folding the Spark backs up clean

the Spark backs up clean design and its well-ventilated shape with a great fit and the enhanced protection offered with MIPS

The advanced new compound

With a variety of unique finishes and colors  -  if you don't find a SPOON DC that's perfect for you

Shock absorbing EPS (Expanded Polystyrene) foam is molded directly to an outer hard shell

Vittoria Standard Butyl Inner Tubes for Gravel 650b / 27.5 BikeType_Folding the Spark backs up cleanSTANDARD Butyl inner tubes butyl inner tubes for everyday use good puncture resistance and airretention wall thickness 0. 9 mm Protection in any instance general purpose butyl inner tubes for everyday use. Standard inner tubes are made with high quality synthetic rubber with a wall thickness of 0. 9 mm. Standard tubes offer good puncture resistance and a solid airtight performance in every instance.