Fits seat posts with 10 mm horizontal hole - The DELTA SONIC XL allows for a rear seat position and is 0.8" longer than the standard DELTA SONIC
Watch an introductory video on the DELTA SONIC
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.
The DELTA SONIC XL allows the bottle to be close to the saddle, hiding in the rider’s draft and provides clean air flow.
Reliable & Customizable
The DELTA SONIC XL fits snug into the seat post providing a sturdy non-sway bottle mount, for fast and safe access to your bottle. The DELTA SONIC XL rod can slide along the seat post for the best customized fit for you. XLAB recommends a 1" insertion minimum into the seatpost.
XLAB has found these bikes to be compatible with the DELTA SONIC XL.
Cervelo™ P5 & 2013 P3, Scott™ Plasma, Kestrel™ 4000, Fuji™ D6 & Norcom, BH Aero
Optional Accessories for Cervélo™ P5, 2013 Cervélo™ P3 and BH Aero
Pair the DELTA SONIC XL with the aerodynamic STEALTH POCKET 200 or STEALTH POCKET 300. Bags mount to the top tube on the 2 bolt bosses. Capacity of 20.4 cu.in, these bags can hold the longest energy bars plus some gels and salt tablets.
- DELTA SONIC XL Rod
- GORILLA XT Cage
- All hardware and installation instructions
Rod 107 grams, Cage 49 grams. Total 156 grams.
Two Year Warranty.