SRAM® 3.0 Comp(tm) Twist Shifter ESP(tm) - Technology: 1:1 ratio and SRS technology for smooth and precise shifting - Gears: 3-speed - Gear Indicator: Quick View Display - Material: 50 mm (Shorty) grip made from Empilon®, housing made from lightweight Grilon® with injection molded finish - Compatibility: SRAM® and Shimano® derailleurs - Additional: Sealed cable opening