WHAT IS IT?
The Iconic SILCA 24.1 gasket is the heart of the press-on Presta chuck. The current 242 gasket utilizes a high tech and very red, fully synthetic elastomer base material.
- Full synthetic elastomer base material
- 5X the durability of traditional rubber materials
- New Two-Stage sealing geometry optimized for all Presta valve stems
- Pressure amplifying dome geometry uses air pressure to clamp valve stem
- Fits all prior SILCA Presta heads