my tyres are not worn out at all, it's the BT014 and it's done 4500km
and just realised i have only done less than 4000 km on my bike since i bought it

anyway i have bought another set of the BT014 since it was cheap and now but tyres are only half worn when i looked at the marker last nite
so should i put the new one on or just keep the tyres until i need to replace them?
and how should i store new tyres?
Thx