I have a Trek 9-series aero bike, with an X-lab aero bottle mounted on the seat tube, which, due the bottle's thinness, is too wide to allow another bottle carrier to be mounted on the down tube. I also had a bottle carrier mounted between the aero bars, but when I got an Edge 820, I installed that between the aero bars, leaving no room for the bottle carrier. I thought of installing a bottle carrier on the seat post, but then I'd lose my seat bag. Any ideas how I can get a 2nd bottle carrier on my bike without losing the 820 or seat bag?

I have 4 of these on different bikes. They will hold your water bottle, plus the bag is big enough to hold a frame pump, a spare tube, tools, and maybe even a small lunch.



Disadvantages: 1.) Don't work well on small frames, 2.) can interfere with rear brake cables a bit, and 3.) having your bottle up that high affects handling and acceleration some. I now know why frame builders always place water bottle bosses as low as possible on the frame. One way I have found to deal with this problem is to only carry empty bottles back there when possible, that helps a lot.

X-Lab is top of the line.

X-Lab Wing for two bottles + storage
https://www.xlab-usa.com/products/du...hydration.html

X-Lab Torpedo with a Garmin mount
https://www.xlab-usa.com/aero-computer-mount.html

They have lots of other solutions for you. If they don't have something for you then no one does.


-Tim-