Slime Smart Tube 20in (1.75 to 2.125) Schrader Valve

Keep your 20 inch wheels rolling with the Slime Smart Tube, pre-filled with sealant to help seal tread-area punctures up to 3 mm as they happen. Designed to fit 20in tyres from 1.75 to 2.125, this inner tube uses a Schrader valve and is built for everyday cycling where thorns and debris can cause annoying flats. The lightweight, pre-installed Slime formula works repeatedly to reduce downtime and get you back riding sooner.