Thanks for the reply Dan! Interestingly, I would think my situation satisfied all 3 criteria when the bottles ejected, as I didn’t freeze them, had xlab gorrila xts , and used Camelbak Podium Chill bottles. Maybe these bottles aren’t stiff enough?
I wanted to ask about info you have related to angle of the bts mount. I was using xlab mount and, looking at the side of the bike with 0/360 to the top and the front wheel to 90, the mount was angled down and back to about 240 degrees. Maybe this created too much bounce? I changed a number of things at once so can’t say for sure angle solved it, so wanted to see what your experience/info has been. Thank you!
This is my experience from working for an event company and being the ‘bike course guy’ most of the the time. I pick up more Camelbak bottles than any other bottle. Especially the design below… there is something about the twisted bump design that does not work well with staying in cages. If that is the style you’re using… I blame the bottle not so much the cage. I’ve also experienced it myself, them bouncing out of cages…
Otherewise I use X-Lab cages on my TT bike, a Gorilla for my BTA and a Gorilla XT BTS. Not sure how they’d handle a Cameback because I’d never try it… espeically the sort above.