I was just going to mention that
Originally Posted by
liampboyle
My son cracked the body of it.
Anyway, I think I found the culprits, VALVE CORES!!!! The cores in the Schrade valves, the one in the front wheel was loose as I had suspected, and the back tire just had a straight bad valve core, I replaced it with a spare I had and no more hissing air under pressure.
I figured you might have disrupted the valve seal when topping off. My dad showed me the spit check after filling for that very reason.