Dr Sludge Self Sealing BMX & Mountain Bike Inner Tube 20" 1.75" to 2.125" Schrader Valve

This 20" tube is loaded with a specially formulated compound, that forms a layer of sealant around the inside of the tube protecting it from punctures. This size is suitable for BMX & mountain bikes with 20" wheels. Weighing only 70 grams more than a standard inner tube, it wont slow you down.

Features

• Self Sealing tube Prevents flat tyres
• 20" BMX and Mountain bike wheels from 1.75" up to 2.125" width
• Seals punctures instantly up to 3mm diameter
• Inner tube and tyre will not stick together
• Shcrader (car type) valve
• Weight only 265 grams

Useful Tips

• Always remember to check your tyre for objects such as glass or thorns when fitting.
• Ensure the wheel is rotated several times prior to use to allow Goo to evenly coat the tube.