Innovations In Cycling Inc Adapter
Having no experience with Presta valves, I thought this adapter didn't work until someone told me that the Presta valve on the bike tire needs to be unscrewed. The Presta valve on the bike tire is an all metal assembly - including the cap. The cap does not even disconnect from the presta valve, it just loosens and unscrews.
Before I unscrewed the Presta valve I thought the adapter wasn't pushing a pin inside of the valve; but after I unscrewed and opened the valve, it worked like a charm.
As a side note, a bicycle store put an additional plastic cover over my Presta Valve; but in normal circumstance the valve is just a metal assembly without any plastic cover over it.
If you're not familiar with Presta, look it up real quick on the Internet and look at pictures of the valve opening, etc.