It is because two weekends ago, I broke 2 cages on one ride. The ride was 5-6 hours and the roads were bumpy, wet and salty.
The cages are quite old. I got them when I bought a Tomassini as a complete bike 4 seasons ago. The cages had been used for 10 years before I got them.
They saw 3 winters of abuse with me and then I moved them to my mountain bike for summer and back onto my B bike for a 4th winter.
It is unclear what specific incident actually broke the cages, but I find it odd that they both broke on the same ride.
Lucky for me, they continued to hold my bottles until the end of the ride. I did notice that the cages seemed a little loose when I was reinserting bottles. In my oxygen deprived state, I thought that perhaps the bolts holding the cages in place were loose. I figured out that the cages were broken when I was cleaning the salt off of the bike after the ride.
I am curious if any of you science/engineering people can give me a statistical probablity of both cages breaking within the same 5 hour time period after enduring years, perhaps over a decade, of abuse together.
