NEW Shimano Ultegra ST-R8170/BR-R8170 Di2 Shift/Brake Lever and Hydraulic Disc Caliper - Left/Front, 2x12-Speed, Flat Mount, Black type_handlebar-grips-tape-pads Pint-sized cyclists deserve comfortable saddles

Pint-sized cyclists deserve comfortable saddles too

safer and more user friendly option than conventional quick releases

while still having enough range to ride what they want

9mm wall thickness

NEW Shimano Ultegra ST-R8170/BR-R8170 Di2 Shift/Brake Lever and Hydraulic Disc Caliper - Left/Front, 2x12-Speed, Flat Mount, Black type_handlebar-grips-tape-pads Pint-sized cyclists deserve comfortable saddlesControl the road with the Shimano Ultegra ST R8170 Di2 Shifter W BR R8170 Caliper set, designed for the new 2x12 speed Shimano drivetrain. Wireless connection enhances the aerodynamic effect and easy maintenance Wireless shifting customization via Shimano E Tube Project App High electronic energy efficiency, 1. 5 to 2 years of battery life Unparalleled ergonomics engineering refined with pros' feedback Raised hood peak improves ergonomics Optimized