The Shimano XTR SL-M9100 shift lever delivers quick and intuitive rear shifting for improved control out on the trail. With a lightweight and compact design, this lever continues to set the standard for mountain bike shifting.-Quicker lever access and light operation force maintains rider concentration-This RapidFire Plus shifter features Shimano’s premium shifting technologies, including multi-release, instant release, and 2-way release-I-Spec EV design offers a wide range of adjustments including increased lever slide range and a 60-degree rotational angle