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Ships within 48 hours · Estimated delivery Sep 17 - Sep 22
Replaces Service Course-SS
Padded notebook compartment
Chain Line 52 mm
Pulley Compatibility RD-M7100
Comes with roof rack adapter (Thule
Ultegra Di2 ST-R8170 / BR-R8170 Car Racks Replaces Service Course-SSThe 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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