true if they were corroded and the rim of the tyre sat against the corroded part then they would leak sitting there,but when they inspected the rims to find the leak the rims wasnt corroded as thats what they thought hmmm think im just gonna start from scratch new rims,new valves,new tyres s it must be only me who has this problem with keeping it up for long time it aint running serious power so can only be rims maybe there cracked and when they get warm or put under power they open up scary