Pay in 4 interest-free payments of $89.38 Learn more
Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
Compatible with BB30/PF30 bottom bracket shells from 68mm to 83mm in width
Replaces Service Course-SS
Compatible with 11 speed Road (10 speed compatibility requires 1
Chain Line 52 mm
Ultegra Di2 ST-R8170 / BR-R8170 Car Racks Compatible with BB30/PF30 bottom bracketThe ULTEGRA ST R8170 2x12 speed Dual Control levers with Wireless Di2 connectivity deliver a clean aesthetic and simple setup while reimagined ergonomics bring a new level of comfort and control. 2x12 speed Dual Control lever with 4. 6mm longer reach for increased security and control Refined hood for improved ergonomics and aerodynamics with improved button access SERVO WAVE technology enhances brake performance thanks to a faster initial bite point
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