Instead of just saying "eh, close enough," get your pressures right on with Silca's Presta Chuck. Silca prides itself on making high-quality parts that last virtually forever. Indeed, this chuck's full 17-4 stainless steel construction looks fantastic and will last for years, while the synthetic elastomer gasket has five times the durability of traditional rubber, so there's a good chance you'll never have to replace it.
