Hey guys. So on my fat tire bike I have presta valves on my tires. My hand pump only works for schrader valves so I bought a couple of the little adapters that screw onto the presta valve to convert them. After doing so I noticed the rear tire kept going flat. Little inspection showed it was caused by the adapter but the odd thing is, the front does not leak. You should be able to keep the presta unlocked with these installed, correct? I ended up locking the rear with the adapter installed. If i need to fill it I have to unscrew it and unlock the valve. Kinda a pita but whatever.
Another question, why in the hell is the presta valve even a thing?