Shimano Dura-Ace ST-R9270-RF Di2 Shift/Brake Lever – Right 12-Speed Black. Featuring 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.

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