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they hold any type of tube firmly but gently
ultra-compact design
Stable endurance geometry partners with road-smoothing rear IsoSpeed that absorbs bumps in the road for a smoother
smoother shifts under maximum pedaling force
Shimano STI Lever ST-R8170 Bled Hydraulic Disc, Di2 E-tube STI Set, Flat Mount Calliper Style:Right Hand they hold any type ofDescription High performance Ultegra Wireless hydraulic Servo Wave disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditions Wireless connectivity to the front and rear derailleurs for effortless trouble free gear shifts With Di2 technology shifting is easy and precise just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear
