The person who has been losing them on his roadbike; wtf are you doing to them!? I cannot understand how that’s possible.
Well, I didn’t think I was doing anything spectacular with them. Filling them with about 500 ml and riding around my local Welsh roads at my usual sort of pace. They were fitted to two different road bikes (a Giant and a Planet X) so I don’t think there was an intrinsic bottle cage boss issue. They were a very early batch – I had them on pre-order for some time – and there’s an intriguing comment up there about a design change to the studs, that’s something I will definitely check tonight.
They always seemed perfectly okay up until the point of ejection. They were so bloody tight it seemed inconceivable that they would eject. But one would depart almost every ride. And I can categorically guarantee that they were on properly. There’s a couple of bulges in the v-notch mount on the bottle that produce a characteristic “clunk” as the bottle goes into its home position. Plus, I was getting pretty paranoid about it, and was applying positively ridiculous amounts of force to ensure they weren’t going to launch into the undergrowth. But they still did.
I wanted these to work, and I persevered for months. But… coming back to regular bottles and bottle cages felt like “coming home”. The bliss of just effortlessly popping that bottle back into a bottle cage was something I hadn’t realized I was missing. I’m afraid that if I was assured these would never eject again, I’d still stick with cages now.
So, sorry if my bad experience was out of kilter with everyone else’s – I was just offering my experience to help the OP make an informed decision.