MARVEL Road Self Seal Tube (700x18-23C) 48mm
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.
- suits tyres 700 x 23 and 700 x 25
- 48mm presta valve
- tube is filled with "goo" that automatically repairs a puncture (for holes up to 3mm)