Erik_A

Which giant canisters (32oz or 40oz) for water do you guys recommend? I plan to use it in a Blackburn Outpost Cargo Cage.

http://www.everythingwillbenoble.com/blog/bike-packing-touring-gear-review-blackburn-outpost-top-tube-bag-outpost-cargo-cage

Blackburn Outpost Cargo Cage.jpg 

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RoverAl
Usually 32oz is a good size, especially if you have to do water purification you have the correct volume for measuring. Though I wouldn't hesitate to go larger.
I added a couple of platypus containers to my system which are lighter and fold down small enough to put in your pocket when empty. Can freeze them and they are durable.. http://www.cascadedesigns.com/platypus/bottles-and-storage/category?
I have the blackburn cage also.

*Stainless Steel is an option too if you need to boil water.
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Nubster
Personally...if I was going to haul a bottle that large...I'd probably just wear my hydration pack and fill it with 100 oz of water and be done with it...or invest in a frame bag that holds a bladder and allows the drink tube to come out and be at the ready. I can see myself now banging my legs/feet off that thing every pedal stroke for miles and miles and miles. Well...I wouldn't actually because the bottle would end up in the ditch somewhere after just a few miles of that.
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jchap
Any Nalgene type, plus one of these lids https://www.rei.com/product/777295/humangear-capcap-water-bottle-top or these inserts https://www.rei.com/product/729119/guyot-designs-splashguard-universal

You can also use the bottles as a waterproof container for whatever (food, shirt, etc.)

Also pro hiker tip - you can wrap a few layers of duck tape or gorilla repair tape around the bottle and it will still fit in the cage. They you have tape for whatever, like field repair of a tire puncture, or tent or clothes.
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rallysmurf
i use two fish velcro on cages with 32 and 64 stainless steel Klean Kanteens.

they hold very tight with curved hard rubber mounts.
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