All SLiME Smart Tubes are factory-filled with a precise volume of Slime Tube Sealant. Smart Tubes instantly seek out and seal punctures as they occur, preventing flats, repeatedly and continuously for up to two years. Ride without worries.;The valve stem length on Smart Tubes with a presta valve is 39 mm.

• Slime Smart 700 x 19-25c Presta Valve Racing Bike Tube

Slime Smart 700 x 19-25c Presta Valve Racing Bike TubeSlime