Pair of foam valve inserts included gravel / cx

Technical data of CushCore:
Designed from a super light and waterproof foam,
Compatible with the preventive liquid,
Impact resistant,
Reduces vibrationLimits
the deformation of the tire on committed trajectories.
The insert fills 50% of the volume of the tire, allowing the air to act as a "spring" to absorb the shock in case of impact.
Compatible with all 27.5" and 29" wheel sizes 150gr in 29' ( unit )
140gr in 27.5' ( unit ) 120gr in 700c ( unit )