The XLAB Delta Sonic ML replaces the regular Delta Sonic and Delta Sonic XL.

Sturdy, highly adjustable rear system for bikes with 10mm horizontal seat post holes.

Highly adjustable to your saddle position and riding style

Tucks neatly behind to streamline rear drag into clean airflow

Sturdy design eliminates irritating bounce and sway

10lb cage grip holds securely onto bottles

Highly Compatible to Suit Various Saddle Positions

Whether your saddle is positioned far forward or back, the DELTA SONIC ML has 3.25” (82.5mm) of adjustability to suit most riding styles

Aerodynamic Location

Bottle tucks in closely behind the saddle, hiding in the rider’s draft to produce a clean airflow

Designed in conjunction with Cervelo wind tunnel tests

Reliable, Sturdy Design

Strong, stainless steel mount eliminates swaying and bouncing

On bumpy courses, your bike can produce a seesaw effect, easily ejecting loosely-held bottles. XLAB’s highly regarded GORILLA CAGE is designed with tall sides and superior 10lb bottle grip, coupled with a flared design making bottle insertion/removal easy

Innovative VEE CLAMP locks mounting rod in place while reinforcing seat post support