Looks like Lezyne, Specialized and Topeak are mainstream, did find this from the US which looks a bit nicer https://lagunabicycles.com/product/laguna-side-entry-carbon-water-bottle-cage/ or from Edinburgh bicycle cooperative there is the Frog side entry (sounds a bit, well, wierd) or this from Arundel http://www.arundelbike.com/product/sideloader/
Yeah I've seen all of those and all really nice. However, I'm looking for something a bit more durable. Carbon does look like the only option though
Specialized Zee
Vavert BCV120 Alloy
@Jules started
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Looks like Lezyne, Specialized and Topeak are mainstream, did find this from the US which looks a bit nicer https://lagunabicycles.com/product/laguna-side-entry-carbon-water-bottle-cage/
or from Edinburgh bicycle cooperative there is the Frog side entry (sounds a bit, well, wierd)
or this from Arundel http://www.arundelbike.com/product/sideloader/