The Profile Designs' RM System-1 allows you to carry 2 water bottles behind your seat. It mounts to your seat rails and includes 2 Kages. Bolt it on and go cheat some wind.
6061-T6 aluminum construction
Full angular adjustment allows bottles to be rotated
Includes 2 lightweight Profile Design Kages
Compatible with standard 7mm saddle rails
Weight 190 grams