Im I being a retard? I cant see anywhere on any gear, weapons, armour etc the weight of any item. Have I missed something obvious?

it's not there.
CGL felt that was too much micromanaging and did away with it.

Basically, it's left to the GM and their players to decide what's reasonable, and what isn't.

Also, because encumbrance is about more than just weight, it's also about shape and size/volume.