Working closely with Cervélo®️ and their wind tunnel testing results, XLAB developed an aerodynamic single rear system specific to Ritchey clamp seat posts with a 10 mm horizontal rear hole. These can be found on certain Cervélo®, Scott®️, Kestrel®️, BH®️ and Fuji®️ models.
Delta Sonic – The shortest length rod for those with forward mounted saddles.
Delta Sonic ML – Medium length with up to 3.25″ of adjustability. Fits most riding styles.
Delta Sonic XL – For positions where the saddle is mounted rearward. 0.8″ longer than the standard Delta Sonic.
Aerodynamic Design
- Bottle tucks in closely behind the saddle, hiding in the rider’s draft to produce a clean airflow.
- Designed in conjunction with Cervélo®️ wind tunnel tests.
Reliable & Customizable
- 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 10 lb 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.
Storage Options
There are two storage options available for the Delta Sonic ML, the AERO POUCH 300 or the MULTI-STRIKE REPAIR. XLAB does not recommend that the two storage options be used together due to the additional weight load on the rear carrier’s mount.
Compatibility
XLAB has found these bikes to be compatible with the Delta Sonic.
Cervélo®️ P5 & 2013 P3, Scott®️ Plasma, Kestrel®️ 4000, Fuji®️ D6 & Norcom, BH®️ Aero.
XLAB VEE CLAMP helps support the seat post to keep mounting rod locked in place.