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The M12x1 axle thread provides a secure fit
and a natural boost to NO2 production
This thoughtful design makes it easy to apply the necessary force without straining your hands
The moisture-regulating properties of the cap wick away sweat
resulting in a Performance Road Geometry that combines a responsive front-end with a short wheelbase
Shimano Ultegra ST-R8170/BR-R8170 Hydraulic Disc Brake Set Type:Left/Front The M12x1 axle thread providesThe Shimano Ultegra ST R8170 Dual Control Levers bring pro level performance to everyday riders. Featuring the new Di2 wireless platform, these levers deliver Shimanos fastest and most reliable shifting yet, eliminating the need for shift wires and giving a clean, streamlined cockpit. Enhanced Modulation with Servo Wave: Employing Shimanos proven Servo Wave technology, the ST R8170 levers provide improved modulation and control. This ensures quicker