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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
Precise and easy front derailleur adjustment
5 mm shell width
Compatible with tubeless
Total capacity: 31T
Diameter 47 mm threaded
Profile Design Sonic Ergo 52a Aerobars 9speed Precise and easy front derailleurThe Profile Design Sonic Ergo 52a Aerobars are designed to provide aerodynamic efficiency and adjustable cockpit positioning for triathlon and time trial cyclists. The Sonic bracket system offers multiple adjustment points while the Ergo armrests provide stable support for the forearms. The 52a extension shape allows riders to maintain an elevated hand position that supports aerodynamic efficiency while improving comfort during extended rides. The