I wanted to see how well a downtube mounted water bottle cage would work on my Krampus. I didn’t love the fork mounted cages I tried on my Scandal 29er. Plus if the DT cage worked I could always add fork mounted cages later if I needed a ton of water on a trip.
I just used two hose clamps on the Topeak cage and them a velcro pant strap at the top of the bottle. It seems pretty secure, but only time will tell.
Combined with the stem mounted bottle that gives me over 2L of water.
Here are a couple close ups.