I kept my adaptor on my tube so I would not have to remember where I put it. you can't get cool valve caps for presta( you know the dice, bullets,skulls etc.LOL).I have a bout 15 of those darn adaptors somewhere and only know where 2 are.sitting on 2 presta tubes in my shed. I ended up drilling mine out too cuz there are no presta tubes available near me either and I hate patching tires on the trail