It happened again last night on my pannier. The left side of the pannier bungee got loose and somehow went into the spokes and it also caused the cassette lockring to come completely loose. (Maybe unrelated) So, the chan got caught inbetween the biggest cog and the spokes. Fortunatuly, I was going slow at the time and there was not any other damages caused.

So, my question, what is the best method to keep the pannier bungee cord from getting loose. I don't have it there anymore as it broke the cord and I have to look for it tomorrow. I didn't ride today. So, do zip ties work well to avoid this. (The only drawback is I have to waste a zip tie every time I need to take the panneir off. The only other thing I can think of is using bailing twine, as it is pretty strong and can be tied pretty tight. I just don't want to repeat this again.

So, any suggestions?