I use 2 Kleen Kanteen and 1 Sigg bottle on my Raven -- see the attached photo. The KKs are 26 oz (I think) and the Sigg is a litre. The two KKs are about 3-4 years old, and have served me very well. All three holders are those made by KK, which fit the 26-oz bottles well, but also accept the 1-ltr Sigg as if it were designed for them. Two of my cages are about 4 years old, the one in front of my downtube (holding the Sigg) is three weeks old.
No problems of any kind -- the only issue I've had is that occasionally, one of the bottles develops some mould on the inside, I think because I regularly add the juice of half a lemon to each bottle. I clear the crud by adding a handful of sand & small bits of gravel, half-filling the bottle with water, and shaking it for 30 seconds, then emptying & flushing.
No hesitation about recommending the Kleen Kanteen bottles or cages.
Hope this is helpful.
PS: sorry about the suburban backyard clutter in the foto -- I have another which is better composed, but this shows the kanteens clearly.
