Specialized Tube 20" Presta Size:3.5-4.5 and all of the features

and all of the features you need

quality and performance

the most effective puncture protection belt for bicycle tires

double hinged quick release fitting system also fits aero forks and is compatible with disc brakes

Over the helmet hood with 3-way draw cords keep things tidy as well

Specialized Tube 20" Presta Size:3.5-4.5 and all of the featuresYour little ones have a youthful, intrepid spirit that sees them riding wherever the wind takes them. Most of the time, however, it takes them straight through thorns and debris, leaving you with the unenviable task of changing out flat after flat. But with our Standard Presta Valve Youth Tubes, you can rest assured that they're riding on tough tubes that are built strong to last. And to make sure of it, they feature a molded method of construction