alesa endeavour rims

[Tim]

does anyone know how i can tell when these rims are nearing the end of their life? they have a label saying, "Safety Line" around one particular spoke, but I don't know what to look for. i expect i could ask spa cycles of harrogate where i bought them from but thought you lot would probably know!

[MLJ]

Tim, I rode my Endeavour rims until a wee hole appeared! They are double wall and unlikely to burst if only the outer wall is worn. But keep on and brake blocks get eaten!