The frame shape / size on my 2016 Trek Series 1.1 does not permit mounting both a water bottle cage AND this Topeak Turbo Morph G pump within the triangle frame.

My current solution is to mount this to the bottom of the left chainstay. The attachment method is to use acrylic adhesive Velcro on the bracket and on the chainstay, plus nylon wire ties.

The pump appears to be very secure.

The pump is ZERO utility to be home, when I'm stuck on the side of the road w/ a flat. Now I can patch, pump and go again.