MARVEL MTB Self Seal Tube (29er) AV

Marvels quick seal bicycle tubes are a sound choice for commuter, mountain, training and utility bikes that need puncture-resisting dependability without a big weight penalty. 

In contrast to their bulky thorn resistant cousins, the Seal Tube is a conventional butyl tube containing a sealant designed to seal holes up to an eighth of an 3mm wide.

Features:

• suits tyres 29x1.95/2.12
• 48mm Schrader valve
• tube is filled with "goo" that automatically repairs a puncture (for holes up to 3mm)