Silca Aluminum Disc Chuck - Presta Smart Trainer This is a tool that

This is a tool that seems simple but reveals its quality every time you reach for it

and careless storage

The gloss finish blends naturally with factory paint

harder-to-seal holes that standard plugs can't handle alone

or gravel riders who want a pedal that vanishes underfoot

Silca Aluminum Disc Chuck - Presta Smart Trainer This is a tool thatWhat makes the SILCA Aluminum Disc Chuck seal where others leak? The SILCA Aluminum Disc Chuck is an ultra compact adapter built to solve the one problem that makes disc wheel inflation frustrating: leaking under pressure. The 252 gasket, borrowed from industries that demand air tight seals in the harshest environments, tests to a life expectancy more than five times longer than the carbon filled rubber or Buna N materials used in standard disc