Silca Elastomer Seal for Presta Chuck #242

Description:

The SILCA 24.1 gasket is the essential component at the core of the press-on Presta chuck. The 242 gasket features advanced synthetic elastomer construction, engineered for reliable sealing performance.

Specifications:

• Synthetic elastomer base material
• 5X the durability of traditional rubber
• Two-Stage sealing geometry optimized for all Presta valve stems
• Pressure amplifying dome geometry uses air pressure to clamp valve stem
• Fits all bell-shaped SILCA Presta heads
• 9mm H x 21mm OD