Weight limit for a T bag

[GM]

Does anyone know how much weight a T bag can take safely before it pulls you over or breaks?
I had to bring a load of tools from work home with me today, it seemed to cope alright. When I got home the
curiosity got the better of me and I put the bag on the bathroom scales, 13 kilos a little over 2 stone. I'm sure its not a record, but just wondered!

 

[Rohloff_Brompton_Rider]

Nope nowhere near a record, I'm pretty sure the manual says 10kg but I've had loads and loads of books from uni with no issue.

 

[Brommyboy]

The limit is in the front block, rather than the bag! 10kg is regarded as the safe option but I do know of short distance trips with treble that amount loaded! Obviously a bumpy ride will cause more stress on the block.