Standard frame-mounted bottles have high aerodynamic drag, so place your bottle at the rear instead. The Delta Sonic mounts on seat posts which have a 10mm horizontal hole at the back. The rod installs into the seat post for a sturdy, solid system. The system includes a Gorilla XT carbon cage which provides a tight 14-pound grip on your bottle.
Weight: 141 grams (rod 92 grams / cage 49 grams)