Indeed, the capacity of the former was too just for a tube and various niceties but especially after a fall at a standstill, while the T-Fix system is broken into several pieces .... J 'I could repair the enhanced araldite of cable ties. This bag is now fixed on my bike holiday, less stressed.
I think for a system that should a priori not be mounted / dismounted too often the strap system is the best.
In conclusion: good 1 liter bag with strap system.
