Michelin::Tube Air stop, Presta 40mm, 700x18/25::Tube

High-quality, ultra-low weight tubes that retain air just as well as conventional butyl tubes
Possesses the same resistance to punctures
Made from top quality butyl, more airtight and sturdy
Thicker and are more resistant to pinch-flats
Weighs 93g
Fits tires 700x 18-25mm