Shimano Dura-Ace ST-R9270-RF Di2 Shift/Brake Lever - Right, 12-Speed, Black Apparel Brand_Supacaz Each switch has the option

Each switch has the option for multi-shift ON or OFF

following parallel paths

as it allows bike fitters flexibility in achieving a comfortable position without sacrificing steering control

For runners who don't want to sacrifice comfort for support

Always check with your rim manufacturer to verify rim & tire compatibility before assembly or use

Shimano Dura-Ace ST-R9270-RF Di2 Shift/Brake Lever - Right, 12-Speed, Black Apparel Brand_Supacaz Each switch has the optionFeaturing Servo Wave Action brake technology, the Shimano Dura Ace ST R9270 brake lever delivers modulation and control like never before. Wireless shifting keeps your bike looking clean while offering the fastest, most precise gear changes available. All of this resides in a dual control lever that employs the most advanced materials to offer lightweight and refined ergonomics that provide comfort and control for the most demanding conditions. The