I am trying to find a way to carry 2 more water bottles when I ride. Asking here as tri-folks tend to carry bottles behind the seat. I have seen the Performance one that goes on the seat stem and REI (gasp!) has one that attaches to the seat rails. Looking at other LBS, I have not found other options.
Searching this forum, I found the XLab information, but don't run an aero seatpost, so options become more limited.
My tubes, etc are carried in a small bag under my seat. A way to still carry that gear is necessary.
Any suggestions you can make would be most greatly appreciated.